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020 | _a9780416683002 | ||
040 | _cSerosoft Solutions | ||
100 | _aAshby W. Ross | ||
245 | 3 | _aAn Introuduction Cybernetics | |
260 | _aLondon | ||
260 | _bMethuen & Co Ltd | ||
260 | _c1956 | ||
300 | _a295 | ||
546 | _aEnglish | ||
942 | _cLeding | ||
999 |
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