@book{139744,
	author = {Mayer, Raymond R.},
	title = {Production and operations management / },
	publisher = {McGraw-Hill},
	year = {1975.},
	series = {McGraw-Hill series in management},
	address = {New York :},
	edition = {3d ed.},
	note = {First-2d ed. published under title: Production management.}
}