Student activities in secondary schools enrichment of the educational program
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua | 
| Hizkuntza: | English | 
| Argitaratua: | New York
          Ronald Press Co.
    
        [1952]. | 
| Saila: | Douglass series in education | 
| Gaiak: |