APA ציטוט

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

Trích dẫn kiểu Chicago

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

ציטוט MLA

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