Educational achievements of thirteen-year-olds in twelve countries : results of an international research project, 1959-61 /
Gorde:
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Hamburg :
UNESCO Institute for Education,
1962.
|
| Saila: | International studies in education (Hamburg, Germany) ;
|
| Gaiak: |
CARM 1 Store
| Sailkapena: |
A1:AL17E0 C10619 |
|---|---|
| Alea 1 | Eskuragarri Erreserbatu |