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024 _a73096
037 _cTextual
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082 _aE1:4:8110, K2
100 _aStone F G A
245 0 _aHydrogen compounds of group !V ekement
260 _c1962
300 _ap.
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650 _aChemistry
942 _hE1:4:8110, K2
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999 _c36161
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