000 00335nam a2200145Ia 4500
008 130410s9999 xx 000 0 und d
100 _aCHOUDHURY D ROY
245 _aNET WORK & SYSTEM
250 _a
260 _bNEW AGE INTERNATIONAL PUB.
_a
_c1996
270 _aDELHI
300 _a
650 _aELECTRICITY
_b
942 _2ddc
_cBK
999 _c4804
_d4804