000 00332 a2200085 4500
100 1 _aStaber, E..
_eAutor
245 0 _aApproach to Testing and Maintaining Telephone Exchanges and Networks /
_cStaber E..
710 2 _aStandard Telephon und Radio AG.
_eWydawca
_4pbl
260 _aZurich :
_bStandard Telephon und Radio AG,
_c1987.
300 _a80 s.:
_bil.;
_c25 cm.
999 _c12040
_d12040