APA
Petroleum Information Service (New Delhi) Statistics (Division), Petroleum Information Service (New Delhi) Statistics (Division), . (1971). Indian petroleum handbook, 1970-71. New Delhi: The Author India.
Chicago
Petroleum Information Service (New Delhi) Statistics (Division), Petroleum Information Service (New Delhi) Statistics (Division), . 1971. Indian petroleum handbook, 1970-71. New Delhi: The Author India.
Harvard
Petroleum Information Service (New Delhi) Statistics (Division), Petroleum Information Service (New Delhi) Statistics (Division), . (1971). Indian petroleum handbook, 1970-71. New Delhi: The Author India.
MLA
Petroleum Information Service (New Delhi) Statistics (Division), Petroleum Information Service (New Delhi) Statistics (Division), . Indian petroleum handbook, 1970-71. New Delhi: The Author India. 1971.
