Cita APA (7th ed.)

Leff, G. (1969). History and social theory. University of Alabama Press.

Cita Chicago (17th ed.)

Leff, Gordon. History and Social Theory. University, Ala: University of Alabama Press, 1969.

Cita MLA (9th ed.)

Leff, Gordon. History and Social Theory. University of Alabama Press, 1969.