Cita APA (7a ed.)

Fortes, M., & Evans-Pritchard, E. E. (1987). African political systems. KPI [etc.].

Cita Chicago Style (17a ed.)

Fortes, Meyer, y E. E. Evans-Pritchard. African Political Systems. London [etc.]: KPI [etc.], 1987.

Cita MLA (9a ed.)

Fortes, Meyer, y E. E. Evans-Pritchard. African Political Systems. KPI [etc.], 1987.