| 000 | 00392pam a2200121a 44500 | ||
|---|---|---|---|
| 008 | 160408b1978 xxu||||| |||| 00| 0 eng d | ||
| 082 |
_a621.382 _bP949 |
||
| 100 | _a | ||
| 245 | 1 | _aPROVISIONAL RECOMMENDATIONS X.3, X.25, X.28, AND X.29 ON PACKET-SWITCHED DATA TRANSMISSION SERVICES | |
| 260 |
_a _bInternational Telicommunication Union, Geneva _c1978 |
||
| 964 | _gCIRC | ||
| 997 | _aA71065 s C | ||
| 999 |
_c309738 _d309738 |
||