Basic texts : manual of the General Conference and executive board : 1990 edition, including texts and amendments adopted by the General Conference at its twenty-fifth session (Paris, 1989).
| Typ dokumentu: | Kniha |
|---|---|
| Jazyk: |
angličtina |
| Vydavatel: |
Paris :
United Nations Educational, Scientific and Cultural Organization,
1990.
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| Předmět: | |
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