@book{53088,
	author = {Anderson, David Ray, and Sweeney, Dennis J.},
	title = {Essentials of management science :},
	publisher = {West Pub. Co.,},
	year = {c1978.},
	address = {St. Paul :},
	note = {Rev. ed. published as : Quantitative methods for business. 2nd ed. 1983.}
}