Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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