APA (7e ed.) Bronvermelding

Crockett, J. U. (1971). Lawns and ground covers. Time-Life Books.

Chicago (17e ed.) Bronvermelding

Crockett, James Underwood. Lawns and Ground Covers. New York: Time-Life Books, 1971.

MLA (9e ed.) Bronvermelding

Crockett, James Underwood. Lawns and Ground Covers. Time-Life Books, 1971.