APA (7th ed.) Zitazioa

Liroff, R. A. (1976). A National policy for the environment: Nepa and its aftermath. Indiana U.Pr.

Chicago Style (17th ed.) Zitazioa

Liroff, Richard A. A National Policy for the Environment: Nepa and Its Aftermath. London: Indiana U.Pr, 1976.

MLA (9th ed.) Zitazioa

Liroff, Richard A. A National Policy for the Environment: Nepa and Its Aftermath. Indiana U.Pr, 1976.