000 00317nam a2200133Ia 4500
942 _cENGBV
520 _aIssue No. 2-4
654 _aUdyog
654 _aPragati
654 _aGeneral
245 _aUdyog Pragati
260 _aNational
_bNational Institute of Science and Communication, New Delhi
_c1999
440 _v23
999 _c40877
_d40877