@book{3423,
	author = {SPIEGEL, MURRAY R.},
	title = {ESTADISTICA/ },
	publisher = {MCGRAW-HILL},
	year = {1991},
	series = {SER. DE COMPENDIOS SCHAUM},
	address = {MEXICO: },
	edition = {2},
	note = {INCLUYE INDICE.}
}