@book{7242,
	author = {Johnson, Lynwood A. and Montgomery, Douglas C.,},
	title = {Operations research in production planning, scheduling, and inventory control /},
	publisher = {Wiley,},
	year = {[1974]},
	address = {New York :},
	url = {http://www.loc.gov/catdir/toc/onix02/73017331.html}
}