Education in depressed areas [papers]
| Egile korporatiboa: | , | 
|---|---|
| Beste egile batzuk: | |
| Formatua: | Liburua | 
| Hizkuntza: | English | 
| Argitaratua: | New York
          Bureau of Publications, Teachers College, Columbia University
    
        [c1963] | 
| Gaiak: |