- Akrell, Carl Fredrik, 1779-1868
- Akselman, Rut
- Aksenova, Olga
- Aksit, Deniz
- Aksornneam, Akrachai
- Aksoy, Ahmet
- Aksoy, Necmi
- Aksu, Ismail
- Aksu, Ismail
- Aksu, Ismail
- Aksu, Sadi
- Akta, Sinan
- Aktac, Nihat
- Akthar, A
- Aktiebolaget Akademiska Bokhandeln
- Akuetteh, B.
- Akulov, Evgeniy
- Akyurek, Basak
- Al Ansi, Amin
- Al Balawi, Manal S.
- Al Dhafer, Hathal
- Al Gazi, Ariel David Freitas
- Al Hemaidi, Ahmad Amer
- Al Jaidah, Noora
- Al Khatib, Fadel
- Al Kolibi, Fahad M.
- Al Mutairi, Mohammed
- Al Noor, Sajed
- Ala, Schweizerische Gesellschaft für Vogelkunde und Vogelschutz.
- Alabama Academy of Science.
- Alabama Agricultural Experiment Station.
- Alabama Gulf Coast Nurseries.
- Alabama Museum of Natural History.
- Alabama Nursery Co.
- Alabama Nursery Company (East Saint Louis, Ill.)
- Alabama Nursery Company.
- Alabama Pecan Growers' Association. Annual Convention.
- Alabama.
- Alabama. Dept. of Agriculture and Industries.
- Alabama. Dept. of Agriculture.
- Alabama. Dept. of education.
- Alabama. Dept. of Game and Fish.
- Alabama. Live Stock Sanitary Board.
- Alabouvette, C
- Alagar Rajan, S.
- Alagarda, Aurea
- Alagona Arthelouche, d'seigneur de Mararvecques.
- Alagona, Peter S
- Al-Aidaroos, Ali M.
- Alalykina, Inna
- Alam, Afroz
- Alam, Aftab
- Alam, Marilene Farias
- Alam, Md. Khorshed
- Alam, Md. Shamshad
- Alam, Mohd.
- Alam, Muhammad Maqsood
- Alam, Noore
- Alam, S.
- Alameda Creek Nursery.
- Alaminos, Javier
- Alamiri, Zaid
- Alamo, Eduardo Carqué
- Alamsyah, Firman
- Alamy Filho, José Eduardo.
- Alanís Flores, Glafiro J.
- Alanís-Rodríguez, Eduardo
- Alaniz-Garfia, Gabriel
- Alanne, Elizabeth K.
- Al-Antary, Tawfiq M
- Alanwold Nursery.
- Alarcón C, Paula
- Alarcón Cabañero, Juan José
- Alarcón, Alejandro
- Alarcón, Carolina
- Alarcón, Diego
- Alarcón, Emilio
- Alarcón, Gadiel
- Alarcón, Iván
- Alarcón, Manuel
- Alarcón, Mauricio E.
- Alarcón, Wilfredo
- Alarcón-Zúñiga, Baldomero
- Alard, Pascale
- Alaria, Alejandrina
- Alarie, Yves, 1956-
- Alaska Agricultural Experiment Station.
- Alaska Forest Research Center (U.S.)
- Alaska Interagency Coordination Center.
- Alaska Quaternary Center.
- Alaska Science Conference Washington, D.C.) 1950-
- Alaska. Department of Environmental Conservation.
- Alaska. Department of Fish and Game.
- Alaska. Division of Forestry.
- Alaska. Division of Geological and Geophysical Surveys.
- Alaska. Territorial Fish Commission.
- Alaskan Boundary Tribunal
- Alaskan Mammoth Expedition (1907-1908)
- Alatawi, Fahad Jaber
- Alatič, Andreja
- Alatorre-Jácome, Oscar
- al-'Aṭṭār, Muḥammad ibn Muḥammad ibn 'Alī,
- Alauzet, Claude
- Alava, Juan José
- Alava, Reino Olavi
- Alavi, Jalil
- Alay, F.
- al-'Aynzarbī, Abū al-Naṣr 'Adnān ibn Naṣr. 1153
- Alayo, Marianella
- Alayón García, Giraldo
- Alayón, Pedro José Pascual
- Alayse, A. M.
- Alba, Christina
- Alba, E.
- Alba, Joel
- Alba-Avila, Jorge Arturo
- Albach, Dirk C
- Alba-Jiménez Jimena Esther
- Albaladejo, J
- Albalat-Botana, Amparo
- Albamont Gardens.
- Albán, Joaquina
- Alban, Nestor J
- Albanese, Fernanda Jacinto
- Albanese, Nicolò
- Albanese, Soledad
- Albañez-Lucero, Mirtha O
- Albani, A D
- Albani, Alberto D
- Albani, Francesco, 1578-1660
- Albano, Antonella
- Albano, Ciro Ginez
- Albano, Mariano
- Albano, Paolo Giulio.
- Albano, Walter S.
- Albany Institute.
- Albany Museum (Grahamstown, South Africa).
- Albany Nurseries (Albany, Or.)
- Albany Nurseries.
- Albany Seed Store (Albany, N.Y.)
- Albany, Dudley Observatory.
- Albarda, Herman.
- Albarelli, Luiz Paulo Printes
- Albaret, Jean-Louis,
- Albariño, Ricardo J.
- Albarracín Z, Juan Sebastián
- Albarracin, Cesar
- Albarracín, Graciela
- Albarran-Melze Natalia C.
- Albatross (Steamer)
- Albatross Expedition 1904-1905
- Albatross Expedition to the Gulf of California (1911)
- Albaugh Nursery and Orchard Co.
- Albaugh, Benjamin Franklin 1836-
- Albaugh, Douglas W
- Albaugh, H. P.,
- Albaum, Harry G
- Albee, Helen Rickey, 1864-1939
- Albee, Louise Rankin.
- Albemarle and Chesapeake Canal Company.
- Albemarle Dahlia Fields.
- Albenga, Laurent
- Albeny, Daniel S
- Albeny-Simões, Daniel
- Alberdi, Juan M
- Alberdi, M. T.
- Alberdi, Miren
- Alberg, Albert.
- Albergaria, A
- Alberico, M S
- Albernaz, Ana Luisa K. M. (Ana Luisa Kerti Mangabeira)
- Alberro, Andrés
- Albers, Focke
- Albers, G.
- Albers, Jana.
- Albers, Joh. Christ. (Johann Christian), 1795-1857
- Albers, Peter H
- Albers, Randy P
- Albers, Th
- Albers, Vernon Martin, 1902-
- Alberstadt, P
- Albert A. Brown & Sons.
- Albert A. Brown (Firm)
- Albert A. Hulley (Firm),
- Albert A. Manda (Firm)
- Albert Arozena Nursery.
- Albert Benz (Firm)
- Albert C. Gallant (Firm),
- Albert C. Pomeroy (Firm)
- Albert Dickinson Co.
- Albert Dickinson Company,
- Albert Dickinson Company.
- Albert F. Etter (Firm)
- Albert G. Ammon (Firm),
- Albert Gamboa, María José
- Albert H. Perrigo (Firm)
- Albert L. Lehan (Firm),
- Albert Lea Sprayer Co.
- Albert Pickens Co.
- Albert Schenkel (Firm)
- Albert Withrow (Firm)
- Albert, Abel
- Albert, Adrien
- Albert, Andrew J.
- Albert, Bruce
- Albert, Dominique
- Albert, Federico, 1867-1928
- Albert, Jacques, active 17th century-
- Albert, James S.
- Albert, Jennifer
- Albert, László
- Albert, Prince Consort, consort of Victoria, Queen of Great Britain, 1819-1861
- Albert, Richard O
- Albert, Susy.
- Albert, Victor A
- Albert, Waco W. 1921-1981.
- Alberta Agricultural Research Institute.
- Alberta Alcohol and Drug Abuse Commission.
- Alberta Beekeeping Industry Advisory Committee.
- Alberta Cancer Board.
- Alberta Cattle Commission.
- Alberta Clubroot Management Committee.
- Alberta Conservation Association.
- Alberta Conservation Strategy Project.
- Alberta Correspondence School,
- Alberta Dairy Control Board.
- Alberta Endangered Species Conservation Committee.
- Alberta Energy/Forestry, Lands and Wildlife General Services Division. Editorial Services.
- Alberta Environmental Centre.
- Alberta Environmental Centre. Aquatic Biology Group.
- Alberta Forage Crops Advisory Committee.
- Alberta Forest Development Research Program.
- Alberta Forest Genetic Resources Council.
- Alberta Forest Products Association.
- Alberta Forest Protection Advisory Committee.
- Alberta Government/Industry Acid Deposition Research Program.
- Alberta Horticultural Association.
- Alberta Land and Forest Services.
- Alberta Natural Heritage Information Centre.
- Alberta Oil Sands Environmental Research Program.
- Alberta Oil Sands Technology and Research Authority.
- Alberta Reforestation Standards Science Council.
- Alberta Remote Sensing Center.
- Alberta Research Council.
- Alberta Research Council. Environmental Research and Engineering Department.
- Alberta Riparian Habitat Management Society.
- Alberta Soil Science Workshop.
- Alberta Special Waste Treatment Centre.
- Alberta Sport, Recreation, Parks and Wildlife Foundation.
- Alberta Swine Improvement Program (Canada)