| 000 | 00415nam a2200133 4500 | ||
|---|---|---|---|
| 008 | 0 1994 0X 000 0EU | ||
| 020 | _a0-07-028040-1 | ||
| 050 | _aHE7631 H474 | ||
| 082 | _a384 H762i | ||
| 100 | _aHeldman, Robert K. | ||
| 245 | _aInformation Telecommunications. Networks, Products, & Services / Robert K. Heldman | ||
| 260 | _aEstados Unidos : McGraw-Hill, Inc. | ||
| 300 | _a386p. / 23.7 cm. | ||
| 999 |
_c21034 _d21034 |
||