000 | 00271nam a2200073 4500 | ||
---|---|---|---|
080 |
_a _b |
||
245 | _aIEC: 50(701) - 1988; International electrotechnical vocabulary Chapter 701 Telecommunications, channels and networks | ||
700 | _aInternational Electrotechnical Commission | ||
260 |
_aGeneva _bIEC _c1988 |
||
300 | _a45p | ||
999 |
_c35621 _d35621 |