000 00315nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c265
040 _aET
100 _aB.R GUPTA
245 0 _aDIGITAL ELECTRONICS
260 _bS.K. KATARIA PUB.
_aNEW DELHI
300 _a543
500 _a16862
942 _cBK
999 _c23094
_d23094