APA (7th ed.) Citation

Gilkey, H. M. 1. (1957). Weeds of the Pacific Northwest. Oregon State College.

Chicago Style (17th ed.) Citation

Gilkey, Helen Margaret 1886. Weeds of the Pacific Northwest. Corvallis: Oregon State College, 1957.

MLA (9th ed.) Citation

Gilkey, Helen Margaret 1886. Weeds of the Pacific Northwest. Oregon State College, 1957.