APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (8:e uppl.)

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