Policy of revision of the Universal Decimal Classification. (4), Making free numbers of two or three digits / by F. Donker Duyvis.
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| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
The Hague :
International Federation For Documentation,
1961.
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| Series: | FID Publication
11 |
| Subjects: |
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