APA引文

Gupta A Das. (1978). Economic and commercial geography. A Mukherjee.

Chicago Edition Citation

Gupta A Das. Economic and Commercial Geography. Calcutta: A Mukherjee, 1978.

MLA引文

Gupta A Das. Economic and Commercial Geography. A Mukherjee, 1978.

警告：這些引文格式不一定是100％准確.