@book{1233,
	author = {Mendenhall, William.},
	title = {A course in business statistics / William Mendenhall, Robert J. Beaver, Barbara M. Beaver.},
	publisher = {Belmont : Duxbury Press, c1996.},
	address = {Belmont : Duxbury Press, c1996.},
	edition = {4th ed.}
}