The psychology and educational reasons for using the vernacular in schools UNESCO meeting of experts on the use of vernacular languages, Paris, November 15 to December 5, 1951.
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
[S.l.
s.n.
19--]
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| Pynciau: |