000 00491nam a2200181 a 4500
001 00089028
003 003
005 20240602103735.0
008 940823c1976 enka eng
020 _a047018651
100 1 0 _aFlowers, Thomas Harold.
245 1 0 _aIntroduction to exchange systems /
_cT. H. Flowers.
260 _aLondon :
_bWiley,
_c1976.
300 _axvii, 326 p. :
_bill.
500 _a"A Wiley interscience publication"
650 0 _aTelephone stations.
942 _2ddc
999 _c80224
_d80224