Cita APA (7a ed.)

Brett, M., & Fentress, E. (1996). The Berbers. Blackwell.

Cita Chicago Style (17a ed.)

Brett, Michael, y Elizabeth Fentress. The Berbers. Oxford [etc.]: Blackwell, 1996.

Cita MLA (9a ed.)

Brett, Michael, y Elizabeth Fentress. The Berbers. Blackwell, 1996.