APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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