000 00277 a2200085 4500
100 1 _aTalley, David.
_eAutor
245 0 _aBasic Electronic Switching for Telephone Systems /
_cTalley David.
710 2 _aHayden.
_eWydawca
_4pbl
260 _aRochelle Park, N.J. :
_bHayden,
_c1975.
300 _a228 s.;
_c25 cm.
999 _c12480
_d12480