एपीए उद्धरण

(1969). Reading in Conservation Ecology. New York: Appleton-Century-Crofts.

शिकागो स्टाइल उद्धरण

Reading in Conservation Ecology. New York: Appleton-Century-Crofts, 1969.

एमएलए उद्धरण

Reading in Conservation Ecology. New York: Appleton-Century-Crofts, 1969.