Bharatdwaj, B. (2006). Physical geography: Introduction to earth. Discovery.
Chicago-stil citatBharatdwaj, B. Physical Geography: Introduction to Earth. New Delhi: Discovery, 2006.
MLA-referensBharatdwaj, B. Physical Geography: Introduction to Earth. Discovery, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.