APA (7th ed.) Zitazioa

Porch, D. (2005). The conquest of the sahara (1st pbk. edition.). New York :.

Chicago Style (17th ed.) Zitazioa

Porch, Douglas. The Conquest of the Sahara. 1st pbk. edition. Farrar, Straus and Giroux: New York :, 2005.

MLA (9th ed.) Zitazioa

Porch, Douglas. The Conquest of the Sahara. 1st pbk. edition. New York :, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.