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024 _a59927
037 _cTextual
040 _aCSL
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041 _aeng
082 _aAh1:N65a, K5;2
100 _aUNESCO
245 0 _aWorld guide to science information and documentation service
260 _c1965
300 _ap.
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650 _aScience history
942 _hAh1:N65a, K5;2
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999 _c80510
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