APA
,, . (2006). Fundamentals of physical geography : Textbook for class XI. New Delhi: N C E R T.
Chicago
,, . 2006. Fundamentals of physical geography : Textbook for class XI. New Delhi: N C E R T.
Harvard
,, . (2006). Fundamentals of physical geography : Textbook for class XI. New Delhi: N C E R T.
MLA
,, . Fundamentals of physical geography : Textbook for class XI. New Delhi: N C E R T. 2006.