APA-viite

Countinho, O. C., & Sharma, T. C. (1999). Economic and commercial geography of India (3.). Vikas Publishing House Pvt .Ltd.

Chicago-tyylinen lähdeviittaus

Countinho, O C., ja T C. Sharma. Economic and Commercial Geography of India. 3. New Delhi: Vikas Publishing House Pvt .Ltd, 1999.

MLA-viite

Countinho, O C., ja T C. Sharma. Economic and Commercial Geography of India. 3. Vikas Publishing House Pvt .Ltd, 1999.