APA
West Bengal. Bureau of Applied Economic and Statistics, . (1980). Statistical abstract 1976 and 1977 (Combined). Calcutta: the Author.
Chicago
West Bengal. Bureau of Applied Economic and Statistics, . 1980. Statistical abstract 1976 and 1977 (Combined). Calcutta: the Author.
Harvard
West Bengal. Bureau of Applied Economic and Statistics, . (1980). Statistical abstract 1976 and 1977 (Combined). Calcutta: the Author.
MLA
West Bengal. Bureau of Applied Economic and Statistics, . Statistical abstract 1976 and 1977 (Combined). Calcutta: the Author. 1980.
