Cita APA (7th ed.)

BARKER, E. (1967). Principles of social and political theory. Oxford University Press.

Cita Chicago (17th ed.)

BARKER, Ernest. Principles of Social and Political Theory. London: Oxford University Press, 1967.

Cita MLA (9th ed.)

BARKER, Ernest. Principles of Social and Political Theory. Oxford University Press, 1967.