@book{140082,
	author = {Leenders, Michiel R. and Fearon, Harold E.},
	title = {Purchasing and materials management /},
	publisher = {R. D. Irwin,},
	year = {1980.},
	address = {Homewood, Ill. :},
	edition = {7th ed.},
	note = {Includes indexes.}
}