Proceedings : records of the General Conference : twentieth session / United nations educational, scientific and cultural organization
| Livello bibliografico: | Monografia |
| Autore: | scientific and cultural organization United nations educational |
| Titolo: | Proceedings : records of the General Conference : twentieth session / United nations educational, scientific and cultural organization |
| Pubblicazione: | 1978 Unesco |
| Descrizione fisica: | 1158 p. ; 30 cm. |
| Nomi: | scientific and cultural organization United nations educational |
| Collocazione: | O.D.614 |