a. (1994). World Resousces 1994 - 95: A guide to the global environment. New York: Oxford university Press.
Trích dẫn kiểu Chicagoa. World Resousces 1994 - 95: A Guide to the Global Environment. New York: Oxford university Press, 1994.
MLA引文a. World Resousces 1994 - 95: A Guide to the Global Environment. New York: Oxford university Press, 1994.
警告：这些引文格式不一定是100％准确.