APA aipamena

Emlen, M. J. (1973). Ecology: An evolutionary approach. Addison -Wesley Publishing Co inc.

Chicago Style aipamena

Emlen, Merritt J. Ecology: An Evolutionary Approach. Sydney: Addison -Wesley Publishing Co inc, 1973.

MLA aipamena

Emlen, Merritt J. Ecology: An Evolutionary Approach. Addison -Wesley Publishing Co inc, 1973.