000 00415nam a2200169Ia 4500
008 180323s9999 xx 000 0 und d
020 _anil
082 _a507.1
100 _a   Singh, Y.K.
245 0 _aTeaching of general science
250 _a1st
260 _aNew Delhi
_bIndian Pub.House
300 _aNot covered syllabus
500 _a1982
650 _aGeneral science - teaching
942 _cBOOK
_01
999 _c7789
_d7789