Ungar, S. J. (1985). Africa: The people and politics of an American continent. Simon and Schuster.
芝加哥风格引文Ungar, Sanford J. Africa: The People and Politics of an American Continent. New York: Simon and Schuster, 1985.
MLA引文Ungar, Sanford J. Africa: The People and Politics of an American Continent. Simon and Schuster, 1985.
警告：这些引文格式不一定是100％准确.