Cohen, R., & Service, E. R. (1978). Origins of the state: The anthropology of political evolution. Institute for the Study of Human Issues.
Čikaški stil citiranja (17. izdanje)Cohen, Ronald, i Elman Rogers Service. Origins of the State: The Anthropology of Political Evolution. Philadelphia: Institute for the Study of Human Issues, 1978.
MLA način citiranja (9. izdanje)Cohen, Ronald, i Elman Rogers Service. Origins of the State: The Anthropology of Political Evolution. Institute for the Study of Human Issues, 1978.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.