APA (7e ed.) Bronvermelding

Harris, A., Harrison, C., & Smithson, P. (1972). The land and conservation. Grosset and Dunlap.

Chicago (17e ed.) Bronvermelding

Harris, Anne, Carolyn Harrison, en Peter Smithson. The Land and Conservation. New York: Grosset and Dunlap, 1972.

MLA (9e ed.) Bronvermelding

Harris, Anne, et al. The Land and Conservation. Grosset and Dunlap, 1972.