@book{3871,
	author = {Spiegel, Murray R. and Stephens, Larry J.},
	title = {Schaum's outlines statistics /},
	publisher = {McGraw-Hill Education,},
	year = {c 2008.},
	series = {Schaum's outline series},
	address = {New York :},
	edition = {4th ed. },
	note = {Includes index.}
}