एपीए उद्धरण

Maclean, R. A., & Cook, W. L. (1968). Practical field ecology (2nd ed.).

शिकागो स्टाइल उद्धरण

Maclean, Rc And, और Wr Lvimey Cook. Practical Field Ecology. 2nd ed. 1968.

एमएलए उद्धरण

Maclean, Rc And, और Wr Lvimey Cook. Practical Field Ecology. 2nd ed. 1968.