Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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