000 00318nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c130
040 _aET
100 _aA.K. GAUTAM
245 0 _aCOMMUNICATION SYSTEM
260 _bS.K. KATARIA PUB.
_aNEW DELHI
300 _a268
500 _a16968
942 _cBK
999 _c23200
_d23200