@book{3215,
	author = {Das, B.C. and Mukherjee, B.N.},
	title = {Integral Calculus :},
	publisher = {U.N.Dhur & Sons,},
	year = {2012.},
	address = {Kolkata :},
	edition = {54th Rev. ed.},
	note = {Includes index.}
}