@book{620,
	author = {Pahari, S.},
	title = {Physical chemistry :},
	publisher = {New Central Book Agency,},
	year = {2007.},
	address = {India},
	edition = {2nd Revised edition.},
	url = {http://www.amazon.com/exec/obidos/ASIN/8173814031/chopaconline-20}
}