@book{1111,
	author = {Stevenson, William J. and Ozgur, Ceyhun.},
	title = {Introduction to management science with spreadsheets /},
	publisher = {McGraw-Hill /Ryerson Limited,},
	year = {c2009.},
	address = {Toronto :},
	edition = {1st Canadian Edition.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy0737/2005058542-b.html}
}