Salkever, L. R. (1972). Africa: Problems in economic development. Free Press.
芝加哥风格引文Salkever, Louis R. Africa: Problems in Economic Development. New York: Free Press, 1972.
MLA引文Salkever, Louis R. Africa: Problems in Economic Development. Free Press, 1972.
警告：这些引文格式不一定是100％准确.