Franklin

Contributions to the life histories of Gordius robustus (Leidy) and Paragordius varius (Leidy) / with twenty-one plates, by Henry Gustav May.

MLA

May, Henry Gustav. Contributions to the Life Histories of Gordius Robustus (leidy) and Paragordius Varius (leidy). [Urbana, Ill.: University of Illinois, 1920.

APA

May, H. Gustav. (1920). Contributions to the life histories of Gordius robustus (Leidy) and Paragordius varius (Leidy). [Urbana, Ill.: University of Illinois.

Chicago

May, Henry Gustav, Contributions to the Life Histories of Gordius Robustus (leidy) and Paragordius Varius (leidy). [Urbana, Ill.: University of Illinois, 1920.