@book{25856,
	author = {Irwin, W. A. and Frankfort, H.},
	title = {El pensamiento prefilosófico :},
	publisher = {Fondo de Cultura Económica,},
	year = {1954.},
	series = {Breviarios / Fondo de Cultura Económica ;},
	address = {México :},
	edition = {1a ed.}
}