Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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