APA (7th ed.) Zitazioa
Gillis, D. H. (1999). The kingdom of Swaziland: Studies in political history. Greenwood Press.
Chicago Style (17th ed.) Zitazioa
Gillis, D. Hugh. The Kingdom of Swaziland: Studies in Political History. Westport, Conn.: Greenwood Press, 1999.
MLA (9th ed.) Zitazioa
Gillis, D. Hugh. The Kingdom of Swaziland: Studies in Political History. Greenwood Press, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.