Biology of the parasites and hyperparasites of aphids
By: by Herbert Spencer ...
Series: Ohio State University. Contributions from the Department of Zoology and Entomology -- no. 88
Published: 1926
Place of publication: Columbus, O.
Language: eng
Number of pages: 157
Subjects: Aphids; Insects; Parasites
Notes: Cover-title.

Published also as thesis (PH.D.) Ohio State University, 1922.

"Reprinted from Annals of the Entomological Society of America, vol. XIX, no. 2."

"Literature cited": p. 151.