@book{53522,
	author = {SPIEGEL, Murray R. and STEPHENS, Larry J.},
	title = {Schaum's outlines of theory and problems of statistics /},
	publisher = {McGraw-Hill,},
	year = {1999.},
	series = {Schaum's Outline Series},
	address = {New York [etc.] :},
	edition = {3rd ed.},
	note = {Tyt. okł.: "Statistics".}
}