000			00417nam a2200145Ia 4500
008			230917s9999||||xx |||||||||||||| ||und||
040			_e69569 _aMAIN
041			_aEnglish
082			_a621.382 V962B
100			_aVries, Leonard de
245		4	_aThe book of telecommunication: telegraph, telephone, radio in the past, present and future
260			_aLondon _bJohn Murray _c1962
300			_a129 p.
942			_cBK
999			_c225597 _d225597