000 00369nam a2200145Ia 4500
008 170519s9999 xx 000 0 und d
041 _aEnglish
082 _a530/PHY/V.2/PT.2
100 _aARVIND KUMAR
245 _aPHYSICS
260 _bNATIONAL COUNSIL OF EDUCATIONAL RESEARCH AND TRAINING
_aNew Delhi
_c1989
300 _c502p
650 _aPHYSICS
942 _cBK
999 _c99297
_d99297