एपीए उद्धरण

Barker, E. (1951). Principles of social and political theory. London: Oxford University Press.

शिकागो स्टाइल उद्धरण

Barker, Ernest. Principles of Social and Political Theory. London: Oxford University Press, 1951.

एमएलए उद्धरण

Barker, Ernest. Principles of Social and Political Theory. London: Oxford University Press, 1951.