@book{26226,
	author = {Gupta, C. B and Stanfel, L. E.,},
	title = {Optimization techniques in operations research /},
	publisher = {Prentice-Hall,},
	year = {Gupta, C. B},
	address = {Englewood Cliffs, N.J. :},
	note = {Companion volume to Analysis of systems in operations research.}
}