000 00317nam a2200121Ia 4500
008 220201s1996 xx 000 0 eng d
041 _aENG
100 _aFREEMAN,ROGER.L
245 0 _aTELECOMMUNICATION SYSTEM ENGINES
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1996
300 _a1023
942 _2ddc
999 _c61706
_d61706