| 000 | 00745cam a2200193 a 4500 | ||
|---|---|---|---|
| 001 | 3449902 | ||
| 008 | 920902s1993 dcua b 001 0 eng | ||
| 020 | _a0070280398 (hardcover) | ||
| 050 | 0 | 0 |
_aHE 7631 _b.H45 1993 |
| 100 | 1 |
_aHeldman, Robert K. _91265 |
|
| 245 | 1 | 0 |
_aFuture telecommunications : _binformation applications, services & infrastructure / _cRobert K. Heldman ; with contributions by T.F. Madison, T.A. Bystrzycki. |
| 260 |
_aWashington, D.C. : _bMcGraw-Hill, _c1993. |
||
| 300 |
_axix, 234 p. : _bill. ; _c24 cm |
||
| 504 | _aIncludes bibliographical references | ||
| 650 | 0 |
_aTelecommunication _xTechnological innovations _9329 |
|
| 650 | 0 |
_aInformation technology _91266 |
|
| 650 | 0 |
_aInformation services _9525 |
|
| 942 |
_2lcc _cBK |
||
| 999 |
_c2550 _d2550 |
||