@book{4112,
	author = {Yusuf, S.M},
	title = {Mathematical Methods},
	publisher = {Ilmi Kitab Khana,},
	year = {2003.},
	address = {Lahore},
	url = {http://www.amazon.com/exec/obidos/ASIN/B0010ZXSGC/chopaconline-20}
}