000 00314nam a2200145Ia 4500
100 _aNarayana Roa/B.V
490 _v1
942 _cBK
654 _aengineering
245 _aEngineering physics
260 _bWILEY EASTERN LIMITED
_aNew Delhi
_c1982
082 _a530
_bNAR
300 _a160
546 _aENGLISH
999 _c23626
_d23626