A. S. Packard jr., M. D. Guide to the Study of Insects and a treatise on those injurious and beneficial to crops: .
Dohrn, Anton, 1840-1909
Article
1871
Entomologische Zeitung
32
140--155
BioStor
German
[Stettin Entomologischer Verein zu Stettin 1840-1911]
BioStor: https://biostor.org/reference/196730
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