000 00540nam a2200193Ia 4500
005 20250508153303.0
008 008 250505s9999 xx 000 0 eng d
037 _aBooks to be hide in OPAC
040 _aFEDL
_beng
_cFEDL
041 _aeng
_2eng
084 _a507, NCE/O
_qFEDL
245 0 _aImproved science teaching in schools
245 0 _cNational Council of Educational Research and Traning
260 _c1963
300 _a188p.
546 _aWeeded out
942 _cHB
_h507, NCE/O
999 _c1341753
_d1341753