Cita APA (7th ed.)
Bernstein, L. (2004). Concepts and challenges the changing land. Glove Fearon.
Cita Chicago (17th ed.)
Bernstein, Leonard. Concepts and Challenges the Changing Land. New York: Glove Fearon, 2004.
Cita MLA (9th ed.)
Bernstein, Leonard. Concepts and Challenges the Changing Land. Glove Fearon, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.