@book{12284,
	author = { Leenders, Michiel R. (et.. al) and Johnson, P. Fraser.Flynn Anna E. and Fearon Harold E.},
	title = {Purchasing and Supply Management },
	publisher = {McGraw-Hill/Irwin, },
	year = {2006.},
	series = {McGraw-Hill/Irwin series operations and decision sciences},
	address = {New York :},
	edition = {13th ed. }
}