000 00933nam a2200253zi 4500
005 20220307101037.0
008 980918m19489999enka 000 0 eng d
035 _aMX001000805443
041 _aSPA
050 4 _aTK6057
_bA75 1948
100 1 _aAtkinson, J.,
_eautor
245 1 0 _aTelephony :
_ba detailed exposition of the telephone exchange systems of the british post office /
_cby J. Atkinson
250 _anew ed.
264 1 _aLondon :
_bSir Isaac Pitman,
_c1948-
300 _avolúmenes :
_bilustraciones
500 _a"A new edition of telephony hebert & procter"
505 _aContenido: v.1. General principles and manual exchange systems -- v.2. Automatic exchange systems
650 4 _aTeléfono
_zGran Bretaña
650 4 _aSistemas de telecomunicación
_zGran Bretaña
336 _atexto
_2rdacontent
337 _asin medio
_2rdamedia
338 _avolumen
_2rdacarrier
999 _c4237
_d4237