APA
(1986). Bulletins of the geological survey of India. Calcutta: Geological Survey of India.
Chicago
1986. Bulletins of the geological survey of India. Calcutta: Geological Survey of India.
Harvard
(1986). Bulletins of the geological survey of India. Calcutta: Geological Survey of India.
MLA
Bulletins of the geological survey of India. Calcutta: Geological Survey of India. 1986.