Four philosophies and their practice in education and religion
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| Formatua: | Liburua |
| Argitaratua: |
New York
Harper
c1957
|
| Gaiak: |
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Argitaratua: |
New York
Harper
c1957
|
| Gaiak: |