Porch, D. (2005). The conquest of the sahara (1st pbk. edition.). New York :.
Cita Chicago (17th ed.)Porch, Douglas. The Conquest of the Sahara. 1st pbk. edition. Farrar, Straus and Giroux: New York :, 2005.
Cita MLA (9th ed.)Porch, Douglas. The Conquest of the Sahara. 1st pbk. edition. New York :, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.