000 00403nam a2200145Ia 4500
005 20250913131724.0
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041 _aEnglish
100 _aLockard, David J.
245 0 _aReport of The International Clearinghouse on Science and Mathematics Curricular Developments 1966
260 _c1966
300 _a291p.;
_c23cm
650 _aReport
942 _cRP
999 _c155348
_d155348