APA-viite

Sarkar,, A. (1997). Practical geography: A systematic approach. Orient Longman.

Chicago-tyylinen lähdeviittaus

Sarkar,, Ashis. Practical Geography: A Systematic Approach. New Delhi: Orient Longman, 1997.

MLA-viite

Sarkar,, Ashis. Practical Geography: A Systematic Approach. Orient Longman, 1997.