000 00478nam a22001577a 4500
005 20090423111246.0
008 090423t xxu||||| |||| 00| 0 eng d
022 _a0972-5060
040 _adpl
245 _aSchool science
260 _aNew Delhi
_bNational Council of Educational Research and Training
_c2007-
300 _av.
_c24 cm
310 _aquarterly
942 _2ddc
_cSR
_s1
999 _c25848
_d25848