Kline, Morris Why Johnny can't add the failure of the new math. - New York St. Martin's Press [1973] - 173 p. illus. Bibliography: p. 171-173. LCCN: 72080894 Subjects--Topical Terms: Mathematics--Study and teaching--United States. LC Class. No.: QA13 / .K62 Dewey Class. No.: 372.7/3/044