00000cam a22000004a 4500 UP-99796217605533956 Buklod 20230503092542.0 a r |||| u| ta 080210s1996 flu r |000 u|eng d M 1574440187 (iLib)UPD-00000336299 DSOLAIR eng HD 30.29 R68 Roth, William Problem solving for result William Roth, James Ryder [and] Frank Voehl. Delray Beach, Fla. St. Lucie Press 1996. 190 p. Problem solving. Ryder, James. Voehl, Frank 1946-. Book FO Monograph UPD DSOLAIR HD 30.29 R68 Book