@book{38131,
	author = {Pieper, Josef and Melches, Carlos},
	title = {De las virtudes fundamentales / },
	publisher = {Ediciones Rialp ,  },
	year = {1980.},
	series = {Manuales universiario Rialp},
	address = {Madrid : },
	edition = {2a. ed.},
	note = {Incluye índice general.}
}