Citazione Stile APA (7a Edizione)

Engels, F., & Morgan, L. H. (1972). The origin of the family, private property, and the state. Pathfinder Press.

Citazione stile Chigago Style (17a edizione)

Engels, Friedrich, e Lewis Henry Morgan. The Origin of the Family, Private Property, and the State. New York: Pathfinder Press, 1972.

Citatione MLA (9a ed.)

Engels, Friedrich, e Lewis Henry Morgan. The Origin of the Family, Private Property, and the State. Pathfinder Press, 1972.