एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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