@book{27882,
	author = {Hillier, Frederick S.},
	title = {Operations Research /},
	publisher = {CBS Publishers & Distributors,},
	year = {1986.},
	series = {Holden-Day series in industrial engineering and management},
	address = {New Delhi :},
	edition = {2nd ed.},
	note = {Includes bibliographical references.and index}
}