Cita APA (7a ed.)

Steward, A. N. (1960). Aquatic plants of the Pacific Northwest: With vegetative keys. Oregon State College.

Cita Chicago Style (17a ed.)

Steward, Albert Newton. Aquatic Plants of the Pacific Northwest: With Vegetative Keys. Corvallis: Oregon State College, 1960.

Cita MLA (8a ed.)

Steward, Albert Newton. Aquatic Plants of the Pacific Northwest: With Vegetative Keys. Oregon State College, 1960.

Precaución: Estas citas no son 100% exactas.