Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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