Porch, D. (2005). The conquest of the sahara (1st pbk. edition.). New York :.
Chicago Style (17th ed.) ZitazioaPorch, Douglas. The Conquest of the Sahara. 1st pbk. edition. Farrar, Straus and Giroux: New York :, 2005.
MLA (9th ed.) ZitazioaPorch, Douglas. The Conquest of the Sahara. 1st pbk. edition. New York :, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.