Wheeler, J. O. (1981). Economic geography. New York: Wiley.
Trích dẫn kiểu ChicagoWheeler, James O. Economic Geography. New York: Wiley, 1981.
MLA引文Wheeler, James O. Economic Geography. New York: Wiley, 1981.
警告：這些引文格式不一定是100％准確.
APA引文