00502nam a2200145Ia 4500003000600000005001700006008004100023040002500064082003100089100004200120245008200162260004100244300002200285500004900307NORSU20240326010435.0240215s9999    xx            000 0 und d  aNORSU-DumcNORSU-Dum  a373 B97 c12Fourth edition  aButler, Charles H. & Wren, F. Lynwood 4aThe Teaching of Secondary MathematicscBy Charles H. Butler & F. Lynwood Wren  bMcGraw Hill Book Co.c1965aNew York  a612 pages, 21 cm.  aIncludes bibliographic references  and index