@book{177764,
	author = {Simmel, Georg. and Pérez Bances, José Ramón.},
	title = {Sociología : },
	publisher = {Revista de Occidente, },
	year = {1927.},
	series = {Nuevos hechos, nuevas ideas ; },
	address = {Madrid : },
	url = {http://bdh-rd.bne.es/viewer.vm?id=0000246342&page=1 }
}