Corn earworm as an enemy of vetch /
Philip Luginbill and A.H. Beyer.

APA Citation

Luginbill, P., Beyer, A. H. (Adolph Harvey). (1921). Corn earworm as an enemy of vetch. Washington, D.C.: U.S. Dept. of Agriculture.

MLA Citation

Luginbill, Philip, 1884-, and A. H. (Adolph Harvey) Beyer. Corn Earworm As an Enemy of Vetch. Washington, D.C.: U.S. Dept. of Agriculture, 1921.

Warning: These citations may not always be complete (especially for serials).