The education index. 1st-. 1929-30 ; a cumulative author and subject index to a selected list of educational periodical, books, and pamphlets.
| Beste egile batzuk: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
New York
Wilson
1930-.
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| Gaiak: |