APA (7th ed.) Zitazioa
Roberts, J., & Curtis, H. (1973). Civilization: Volume 1: the emergence of man in society. Communications research machines.
Chicago Style (17th ed.) Zitazioa
Roberts, John, eta Helena Curtis. Civilization: Volume 1: The Emergence of Man in Society. California: Communications research machines, 1973.
MLA (9th ed.) Zitazioa
Roberts, John, eta Helena Curtis. Civilization: Volume 1: The Emergence of Man in Society. Communications research machines, 1973.
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