000			00337nam a2200133Ia 4500
001			127115
008			170722s9999 xx 000 0 und d
020			_a8185614369
100			_aJolley, Eh
245			_aIntroduction to telephony and telegraphy. /
260			_aAllahabad : _bWheeler pub. , _c1997.
300			_a413 p.
942			_cGEN
999			_c120232 _d120232