@book{4212,
	author = {Das, B. C. and Mukherjee, B. N.},
	title = {Integral calculus :},
	publisher = {U.N. Dhur & Sons.Private Ltd.,},
	year = {c2008 [Reprinted 2012].},
	address = {Calcutta : },
	edition = {54th rev. ed.},
	note = {Includes index.}
}