000 00300nam a22001337a 4500
020 _a8185421196
082 _a630.715
_bRAY
100 _aRay G L
245 _aExtension Communication and Management
250 _a4
260 _aCalcutta
_bNaya Prokash
_c1999
300 _a325p;
942 _cBBS
999 _c371918
_d371918