Mathews, G. B. 1861-1922. Theory of numbers / G. B. Mathews. - 2d ed. - New York ; Chelsea Pub. Co. , [1961]. - xii, 323 p. ; 21 cm. "Originally published as Theory of numbers, part I." Includes index. Subjects--Topical Terms: Number theory. Dewey Class. No.: 512.81 / MAT 1961