APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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