000 00257nam a2200109Ia 4500
008 200701s2000 xx 000 0 eng d
100 _aCARLSON
245 0 _aCOMMUNICATION SYSTEMS
260 _bCBS PUBLICATIONS N.DELHI
_c2000
300 _a686
942 _2ddc
_cGE
999 _c820
_d820