Cita APA

Robert E Ricklefs. (1990). Ecology. New York: W. H. Freeman.

Chicago Style Citation

Robert E Ricklefs. Ecology. New York: W. H. Freeman, 1990.

Cita MLA

Robert E Ricklefs. Ecology. New York: W. H. Freeman, 1990.

Atenció: Aquestes cites poden no estar 100% correctes.