APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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