@book{53078,
	author = { Kothari, C. R.},
	title = {An introduction to operational research /},
	publisher = {Vikas Publishing House Pvt ltd ,},
	year = {1992 [Reprinted 1996,1997]},
	address = {Delhi :},
	edition = {3rd. rev. enl. ed.},
	note = {"Material ... was first prepared for an introductory course on operational research taught at the University of Singapore."}
}