एपीए उद्धरण

Barker, R. (1971). Studies in Opposition. Macmillan.

शिकागो स्टाइल उद्धरण

Barker, Rodney. Studies in Opposition. London: Macmillan, 1971.

एमएलए उद्धरण

Barker, Rodney. Studies in Opposition. Macmillan, 1971.