000 00225 a2200073 4500
245 0 _aTelecommunication Networks /
_cFlood J.E..
710 2 _aPeregrinus.
_eWydawca
_4pbl
260 _aStevenage, Herts :
_bPeregrinus,
_c1975.
300 _aXVII, 431 s.;
_c25 cm.
999 _c12627
_d12627