APA (7th ed.) Citation

Calcutta, B. S. o. C. O. (1933). Census of India 1931. Central Pub. Branch.

Chicago Style (17th ed.) Citation

Calcutta, Bengal. Superintendent of Census Operation. Census of India 1931. Central Pub. Branch, 1933.

MLA (9th ed.) Citation

Calcutta, Bengal. Superintendent of Census Operation. Census of India 1931. Central Pub. Branch, 1933.

Warning: These citations may not always be 100% accurate.