@book{723,
	author = {LIPSCHUTZ, SEYMOUR.},
	title = {TEORIA Y PROBLEMAS DE MATEMATICAS FINITAS/ },
	publisher = {MCGRAW-HILL},
	year = {1972},
	series = {SER. DE COMPENDIOS SCHAUM},
	address = {MEXICO: },
	note = {INCLUYE INDICE.}
}