APA引文

Sharma, T. C., & Coutinho, O. (1977). Economic and commercial geography of India. Vikas.

Chicago Edition Citation

Sharma, T. C., and O. Coutinho. Economic and Commercial Geography of India. New Delhi: Vikas, 1977.

MLA引文

Sharma, T. C., and O. Coutinho. Economic and Commercial Geography of India. Vikas, 1977.

警告：这些引文格式不一定是100％准确.