Cita APA (7a ed.)

Isely, D. (1958). Weed identification and control: In the North Central States. Iowa State College Press.

Cita Chicago Style (17a ed.)

Isely, Duane. Weed Identification and Control: In the North Central States. Iowa: Iowa State College Press, 1958.

Cita MLA (8a ed.)

Isely, Duane. Weed Identification and Control: In the North Central States. Iowa State College Press, 1958.