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003 | MX-SnUAN | ||
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_aMX-SnUAN _bspa _cMX-SnUAN _erda |
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222 | 0 | _aResearch and development | |
245 | 0 | 0 | _aResearch and development |
264 | 1 |
_aWashington _bCahners Publishing Company, _c1960- |
|
336 |
_atexto _btxt _2rdacontent |
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337 |
_ano mediado _bn _2rdamedia |
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338 |
_avolumen _bnc _2rdacarrier |
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999 |
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