Ungar, S. J. (1985). Africa: The people and politics of an American continent. Simon and Schuster.
Chicago Style aipamenaUngar, Sanford J. Africa: The People and Politics of an American Continent. New York: Simon and Schuster, 1985.
MLA aipamenaUngar, Sanford J. Africa: The People and Politics of an American Continent. Simon and Schuster, 1985.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.