Cita APA

Krebs, J. R. (1981). An introduction to behavioural ecology. Sunderland, Mass: Sinauer Associates Inc.

Chicago Style Citation

Krebs, J. R. An Introduction to Behavioural Ecology. Sunderland, Mass: Sinauer Associates Inc, 1981.

Cita MLA

Krebs, J. R. An Introduction to Behavioural Ecology. Sunderland, Mass: Sinauer Associates Inc, 1981.

Atenció: Aquestes cites poden no estar 100% correctes.