@book{544022,
	author = {Sultan, Alan.},
	title = {Linear programming :},
	publisher = {Academic Press,},
	year = {c1993.},
	address = {Boston :},
	note = {Computer disk contains SIMPLEX program written by Evar D. Nering.},
	url = {http://www.loc.gov/catdir/toc/els032/92042448.html}
}