APA (7th ed.) Zitazioa

RIDGEWAY, J. (1970). The politics of ecology. Dutton.

Chicago Style (17th ed.) Zitazioa

RIDGEWAY, James. The Politics of Ecology. New York, E.P: Dutton, 1970.

MLA (9th ed.) Zitazioa

RIDGEWAY, James. The Politics of Ecology. Dutton, 1970.