Gaya APA

Crop Production. (1972). New York: MacMillan.

Gaya Chicago

Crop Production. ed.3. New York: MacMillan, 1972. .

Gaya MLA

Crop Production. ed.3. New York: MacMillan, 1972. .

Gaya Turabian

Crop Production. New York: MacMillan, 1972. .