APA
(2006). India physical environment: Textbook in geography for class 11th. New Delhi, India: National Council of Educational Research and Training.
Chicago
2006. India physical environment: Textbook in geography for class 11th. New Delhi, India: National Council of Educational Research and Training.
Harvard
(2006). India physical environment: Textbook in geography for class 11th. New Delhi, India: National Council of Educational Research and Training.
MLA
India physical environment: Textbook in geography for class 11th. New Delhi, India: National Council of Educational Research and Training. 2006.
