एपीए उद्धरण

Berryman,Alan A. (1981). Population Systems: General Introduction. plenum.

शिकागो स्टाइल उद्धरण

Berryman,Alan A. Population Systems: General Introduction. new york: plenum, 1981.

एमएलए उद्धरण

Berryman,Alan A. Population Systems: General Introduction. plenum, 1981.