APA引文

Thomas, S. E. (2003). Economic and regional geography. Sumit enterprises.

Chicago Edition Citation

Thomas, S Evelyn. Economic and Regional Geography. ND: Sumit enterprises, 2003.

MLA引文

Thomas, S Evelyn. Economic and Regional Geography. Sumit enterprises, 2003.

警告：這些引文格式不一定是100％准確.