The aphid genus Periphyllus;
a systematic, biological & ecological study
[by] E.O. Essig [and] Frieda Abernathy.
APA Citation
Essig, E. O. (Edward Oliver)., Abernathy, F. (1952). The aphid genus Periphyllus: a systematic, biological & ecological study. Berkeley: University of California Press.
MLA Citation
Essig, E. O. (Edward Oliver), 1884-1964, and Frieda Abernathy. The Aphid Genus Periphyllus: a Systematic, Biological & Ecological Study. Berkeley: University of California Press, 1952.
Warning: These citations may not always be complete (especially for serials).