Frege, Gottlob, 1848-1925. The foundations of arithmetic : a logico-mathematical enquiry into the concept of number / Gottlob Frege ; translated by J. L. Austin. - 2nd rev. ed. - New York : Harper Torchbooks, [196-?]. - 119 p. - The Science library . LCCN: 51000436 Nat. Bib. No.: GB50-1654 Subjects--Topical Terms: Aritmética--Fundamentos.Número--Conceito. Dewey Class. No.: 513