Keedy, Mervin L. A modern introduction to basic mathematics / Mervin L. Keedy. - 2d ed - London : Addison-Wesley, c 1969. - xii, 482 p. : ill. ; 25 cm. - Addison-Wesley series in mathematics. . Includes Index 339 339 Subjects--Topical Terms: Arithmetic -- Foundations. -- United States. Dewey Class. No.: 510 / k241m