000 00481nam a2200181Ia 4500
008 240925s9999 xx 000 0 und d
020 _a46210261
082 _a621.387 HIL
100 _aHills, M.T
245 0 _aTelecommunications Switching Principles
250 _aNA
260 _aLondon:
_bGeorge Allen & Unwin
_c,1979.
300 _axxiii,552p.
_bNA
_fPhotocopy
500 _aIncludes Index
600 _aTelecommunication Engineering
650 _aTechnology
942 _cBK
999 _c4776
_d4776