000 00428nam a2200205Ia 4500
008 140520s9999||||xx |||||||||||||| ||und||
082 _a507
082 _bDas
100 _aDas, R. C.
245 _aScience Teaching In Schools
260 _aNew Delhi
260 _bSterling Publishers
260 _c1992
300 _axv;264
300 _bpb
300 _c5.5x8.5
350 _a0
365 _b45
365 _dRuppes
999 _c62405
_d62405