APA (7th ed.) Zitazioa
Bernstein, L. (2004). Concepts and challenges the changing land. Glove Fearon.
Chicago Style (17th ed.) Zitazioa
Bernstein, Leonard. Concepts and Challenges the Changing Land. New York: Glove Fearon, 2004.
MLA (9th ed.) Zitazioa
Bernstein, Leonard. Concepts and Challenges the Changing Land. Glove Fearon, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.