Παραπομπή σε μορφή APA (7η εκδ.)

Engels, F., & Leacock, E. B. (1972). The origin of the family, private property, and the state, in the light of the researches of Lewis H. Morgan ([1st ed.].). International Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Engels, Friedrich, και Eleanor Burke Leacock. The Origin of the Family, Private Property, and the State, in the Light of the Researches of Lewis H. Morgan. [1st ed.]. New York: International Publishers, 1972.

Παραπομπή σε μορφή MLA (9th εκδ.)

Engels, Friedrich, και Eleanor Burke Leacock. The Origin of the Family, Private Property, and the State, in the Light of the Researches of Lewis H. Morgan. [1st ed.]. International Publishers, 1972.