@book{201134,
	author = {Heizer, Jay H. and Render, Barry},
	title = {Principles of operations management},
	publisher = {Prentice Hall},
	year = {c2004.},
	address = {Upper Saddle River, N.J.},
	edition = {5th ed.},
	note = {ESTE LIBRO INCLUYE UN DISCO}
}