000 00421nam a2200169Ia 4500
008 180323s9999 xx 000 0 und d
020 _a8176487120
082 _a428.071
100 _a   Singh, Y.K.
245 0 _aTeaching of general science
250 _a1st
260 _aNew Delhi
_bIndian Pub.House
300 _aNot covered syllabus
500 _a2636
650 _aGeneral science - teaching
942 _cBOOK
999 _c8443
_d8443