Cita APA (7th ed.)

Cohen, R., & Service, E. R. (1978). Origins of the state: The anthropology of political evolution. Institute for the Study of Human Issues.

Cita Chicago (17th ed.)

Cohen, Ronald, i Elman Rogers Service. Origins of the State: The Anthropology of Political Evolution. Philadelphia: Institute for the Study of Human Issues, 1978.

Cita MLA (9th ed.)

Cohen, Ronald, i Elman Rogers Service. Origins of the State: The Anthropology of Political Evolution. Institute for the Study of Human Issues, 1978.