APA (7th ed.) Citation

Operations, W. B. S. o. C. (1967). Census of India 1961: West Bengal and Sikkim. The author.

Chicago Style (17th ed.) Citation

Operations, West Bengal. Superintendent of Census. Census of India 1961: West Bengal and Sikkim. The author, 1967.

MLA (9th ed.) Citation

Operations, West Bengal. Superintendent of Census. Census of India 1961: West Bengal and Sikkim. The author, 1967.

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