APA ציטוט

Krebs, C. J. (1999). Ecological methodology. London: Addison-Wesley.

Trích dẫn kiểu Chicago

Krebs, Charles J. Ecological Methodology. London: Addison-Wesley, 1999.

ציטוט MLA

Krebs, Charles J. Ecological Methodology. London: Addison-Wesley, 1999.