APA-referens (7:e uppl.)

Luginbill, P., & Beyer, A. H. (1921). Corn earworm as an enemy of vetch. Government printing office.

Chicago-referens (17:e uppl.)

Luginbill, Philip, och A. H. Beyer. Corn Earworm as an Enemy of Vetch. Washington: Government printing office, 1921.

MLA-referens (9:e uppl.)

Luginbill, Philip, och A. H. Beyer. Corn Earworm as an Enemy of Vetch. Government printing office, 1921.