Service, E. R. (1975). Origins of the state and civilization: The process of cultural evolution. Norton.
Cita Chicago (17th ed.)Service, Elman Rogers. Origins of the State and Civilization: The Process of Cultural Evolution. New York: Norton, 1975.
Cita MLA (9th ed.)Service, Elman Rogers. Origins of the State and Civilization: The Process of Cultural Evolution. Norton, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.