@book{41658,
	author = {Sarker, Ruhul A. and Newton, Charles S.},
	title = {Optimization modelling :},
	publisher = {CRC Press,},
	year = {c2008},
	address = {Boca Raton :},
	url = {http://www.loc.gov/catdir/toc/ecip0714/2007013747.html}
}