000 00331nam a2200121Ia 4500
008 211209s1963 xx 000 0 und d
041 _aeng
082 _a621.388 5 N73 FRA
100 _aFRASER W
245 _aTELECOMMUNICATIONS ( AN INDUSTORY TEXTBOOK FOR ENGINEERING STUDENTS)
260 _aLONDON
_bMACMILLAN
_c1963
300 _a772
999 _c3029
_d3029