000 00545pam a2200181a 44500
008 160408b1986 xxu||||| |||| 00| 0 eng d
020 _a0471909475
082 _a001.64404
_bH366d
100 _aHeld, Gilbert
245 1 _aDATA COMMUNICATIONS NETWORKING DEVICES
_cCHARACTERISTICS, OPERATION, APPLICATIONS
260 _aChichester
_bWiley
_c1986
300 _ax,372
500 _aRev. Ed. Of : Data Communication Components
650 _aComputer Networks
650 _aData Transmission Systems
964 _gCIRC
997 _aA103797 C
999 _c325264
_d325264