APA (7th ed.) Zitazioa

(1991). Niger: Personal rule and survival in the Sahel / Robert B. Charlick.

Chicago Style (17th ed.) Zitazioa

Niger: Personal Rule and Survival in the Sahel / Robert B. Charlick. 1991.

MLA (9th ed.) Zitazioa

Niger: Personal Rule and Survival in the Sahel / Robert B. Charlick. 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.