APA-viite

Sprout, H., & Margaret, S. (1971). Toward a politics of the planet earth. Nostrand.

Chicago-tyylinen lähdeviittaus

Sprout, Harold, ja Sprout Margaret. Toward a Politics of the Planet Earth. New York: Nostrand, 1971.

MLA-viite

Sprout, Harold, ja Sprout Margaret. Toward a Politics of the Planet Earth. Nostrand, 1971.