Boehm, R. G. (2002). Geography: The World and its people. New York: Glencoe/McGraw-Hill.
Trích dẫn kiểu ChicagoBoehm, Ricchard G. Geography: The World and Its People. New York: Glencoe/McGraw-Hill, 2002.
MLA引文Boehm, Ricchard G. Geography: The World and Its People. New York: Glencoe/McGraw-Hill, 2002.
警告：這些引文格式不一定是100％准確.