@book{21464,
	author = {Zea, Leopoldo},
	title = {El positivismo y la circunstancia mexicana},
	publisher = {F. C. E.},
	series = {Lecturas Mexicanas;},
	address = {México :},
	note = {Esta obra pertenece al donativo del Lic. Carlos Francisco Cisneros Ramos}
}