APA-referens (7:e uppl.)

Powell, E. A. (1926). In Barbary: Tunisia, Algeria, Morocco, and the Sahara. Century Co..

Chicago-referens (17:e uppl.)

Powell, E. Alexander. In Barbary: Tunisia, Algeria, Morocco, and the Sahara. New York; London: Century Co., 1926.

MLA-referens (8:e uppl.)

Powell, E. Alexander. In Barbary: Tunisia, Algeria, Morocco, and the Sahara. Century Co., 1926.