Fehr, Howard F. 1901- Contemporary mathematics for elementary teachers / by Howard F. F ehr and Thomas J. Hill. - Chigago D.C. : Heath and Company, 1966. - xiii, 394 p. : ill. ; 24 cm. Includes bibliography. Subjects--Topical Terms: Arithmetic --Foundations.------ Dewey Class. No.: 510.71 FEH