APA-referens (7:e uppl.)

Portes, A. (1981). Labor, class, and the international system. Academic Press.

Chicago-referens (17:e uppl.)

Portes, Alejandro. Labor, Class, and the International System. New York: Academic Press, 1981.

MLA-referens (9:e uppl.)

Portes, Alejandro. Labor, Class, and the International System. Academic Press, 1981.