@book{4591,
	author = {PALSBERG, JENS. and SCHWARTZBACH, MICHAEL I.},
	title = {OBJECT-ORIENTED TYPE SYSTEMS/ },
	publisher = {JOHN WILEY},
	year = {1994},
	address = {CHICHESTER: },
	note = {INCLUYE INDICE. \ BIBLIOGRAFIA: P. 170-177.}
}