Klopfer, P. H. (1962). Behavioral aspects of ecology. Prentice-Hall.
Cita Chicago (17th ed.)Klopfer, Peter H. Behavioral Aspects of Ecology. Englewood Cliffs, NJ: Prentice-Hall, 1962.
Cita MLA (9th ed.)Klopfer, Peter H. Behavioral Aspects of Ecology. Prentice-Hall, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.