APA

Barker Earnest,, . (1951). Principles of social and political theory. New Delhi: Oxford University Press.

Chicago

Barker Earnest,, . 1951. Principles of social and political theory. New Delhi: Oxford University Press.

Harvard

Barker Earnest,, . (1951). Principles of social and political theory. New Delhi: Oxford University Press.

MLA

Barker Earnest,, . Principles of social and political theory. New Delhi: Oxford University Press. 1951.