000 00315nam a2200121Ia 4500
008 170101s1994 xx 000 0 und d
020 _a8185614369
100 _aJolley E.H
245 0 _aTelephony and Telegraphy, Introduction to
260 _aAlahabad
_bWheeler Publishing
_c1994
300 _a413
942 _2ddc
_cBK
999 _c34893
_d34893