APA (7th ed.) Citation

Roy, P. K. (2010). Churches in Calcutta (1. publ.). Levant Books.

Chicago Style (17th ed.) Citation

Roy, Pijush Kanti. Churches in Calcutta. 1. publ. Kolkata: Levant Books, 2010.

MLA (9th ed.) Citation

Roy, Pijush Kanti. Churches in Calcutta. 1. publ. Levant Books, 2010.