@book{151718,
	author = {Siegel, Andrew F. and Siegel, Andrew F.},
	title = {Practical business statistics},
	publisher = {Irwin},
	year = {c1994.},
	address = {Burr Ridge, Ill.},
	edition = {2nd ed.},
	note = {Rev. ed. of: Practical business statistics with STATPAD. c1990.}
}