000 00441nam a2200157Ia 4500
008 190516s9999 xx 000 0 und d
028 _bPOP
100 _aNational Council of Educational Research and Training
_936645
245 0 _aPhysics
_cPhysical Science Study Committee
260 _bD. C. Heath and Company
_c1960
_aBoston
300 _a656
600 _tPhysics
_91741
650 _aPhysics
_91741
942 _cBK
999 _c115314
_d115314