Age-grade census in relation to grade-progress of the elementary school pupils in the Division of Isabela, 1965-1966 [microform]
| Prif Awdur: | |
|---|---|
| Fformat: | Visual Material |
| Iaith: | English |
| Cyhoeddwyd: |
Quezon City
Photoduplication Service, University of the Philippines Library
1975.
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| Pynciau: |