A study of the present situation of the in-school and out-of-school youth (dropouts and unschooled youth)
| Egile nagusia: | |
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| Erakunde egilea: | |
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Quezon City
National Science Development Board
[1971n]
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| Gaiak: |