Froebel's educational laws for all teachers
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
New York
D. Appleton and company
1897.
|
| Saila: | Half-title: International education series, ed. by W. T. Harris... vol. XLI
|
| Gaiak: |