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| 005 | 20220912145741.0 | ||
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| 041 | _aeng | ||
| 082 | _aE1:8z7, J5 CL | ||
| 100 | _aSchofield K Ed. | ||
| 111 | _aSymposium on recent work on naturally occurring nitrogen heterocyclic compounds (1955 : South westof wngland) | ||
| 245 | 0 | _aRecent work on naturally occurring nitrogen heterocyclic compounds | |
| 260 | _c1955 | ||
| 300 |
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| 650 | _aEngineering | ||
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