The challenge to education,
Gorde:
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
London,
Watts,
1967.
|
| Saila: | The New thinker's library [16]
|
| Gaiak: |
| Deskribapen fisikoa: | viii, 167 p. tables. 19 cm. |
|---|---|
| Bibliografia: | Includes bibliographies. |