000 00331nam a2200121Ia 4500
008 211209s1970 xx 000 0 und d
020 _a035603772X
041 _aeng
100 _aFRASER,W.
245 _aTELECOMMUNICATIONS AN INTRODUCTORY TEXT BOOK FOR ENGINEERING STUDENTS.
260 _aLONDON
_bE LB S.
_c1970
300 _aV + 803
999 _c99444
_d99444