@book{5512,
	author = {Peña, Lorenzo.},
	title = {Fundamentos de ontología dialéctica / },
	publisher = {Siglo XXI de España, },
	year = {1987.},
	series = {Filosofía},
	address = {Madrid [etc.] : },
	edition = {1a ed.},
	note = {Bibliografia. Indice.}
}