a. (1992). World Resousces 1992 - 93. New York: Oxford University Press.
Trích dẫn kiểu Chicagoa. World Resousces 1992 - 93. New York: Oxford University Press, 1992.
MLA引文a. World Resousces 1992 - 93. New York: Oxford University Press, 1992.
警告：這些引文格式不一定是100％准確.