APA (7th ed.) Zitazioa
Ungar, S. J. (1989). Africa: The people and politics of an emerging continent. Simon and Schuster.
Chicago Style (17th ed.) Zitazioa
Ungar, Sanford J. Africa: The People and Politics of an Emerging Continent. New York: Simon and Schuster, 1989.
MLA (9th ed.) Zitazioa
Ungar, Sanford J. Africa: The People and Politics of an Emerging Continent. Simon and Schuster, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.