@book{31171,
	author = {Euclides, 325 A. C.-265 A. C. "Obras"},
	title = {Euclid. Archimedes. Apollonius of Perga. Nicomachus},
	publisher = {Encyclopaedia Britannica, Inc.},
	address = {Chicago, Il. :},
	edition = {22}
}