World illiteracy at mid-century a statistical study.
| Erakunde egilea: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Westport, Conn.
Greenwood Press
[1970, c1957]
|
| Saila: | Monographs on fundamental education
11 |
| Gaiak: |