000 00279nam a22001217a 4500
082 _a621.381 GUP'E
100 _aGUPTA, M. L
_965009
245 _aELECTRONICS AND RADIO ENGINEERING
250 _a8TN
260 _aDELHI
_bDHANPAT RAI
_c1986
300 _aXXV, 1343P
942 _cBK
999 _c573341
_d573341