@book{24346,
	author = {D´Ooge, Martin L., tr.},
	title = {Introduction to arithemetic : nicomachus of gerasa},
	note = {En: Euclid archimedes apollonius of perga nicomachus, tomo 11 / ed. Robert Maynard Hutchins. Chicago : Enciclopedia Britanica Inc., 1987}
}