| 000 | 00413nam a2200157Ia 4500 | ||
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| 008 | 240618s9999||||xx |||||||||||||| ||und|| | ||
| 020 | _aERNET | ||
| 040 | _aMAIN | ||
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| 100 |
_aCCITT _934906 |
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| 245 | 0 | _aBLUE BOOK,VOL.VIII.3: DATA COMMUNICATION NETWORKS:TRANSMISSION,SIGNALLING AND SWITCHING NETWORK ASPE | |
| 260 |
_bITU _c1989 _aGENEVA |
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| 300 | _b473 | ||
| 500 | _aGRATIS | ||
| 942 | _cBK | ||
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_c41835 _d41835 |
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