Biodiversity Heritage Library
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By "Johannsen, Oskar Augustus, 1870-1961"
Handbook of medical entomology [by] Wm. A. Riley ... and O. A. Johannsen ...
By: Riley, William Albert, - Johannsen, Oskar Augustus,
Publication info: Ithaca, N.Y.,The Comstock publishing company,1915.
Contributed by: NCSU Libraries (archive.org)