Age-grade census in relation to grade-progress of the elementary school pupils in the Division of Isabela, 1965-1966 [microform]

Xehetasun bibliografikoak
Egile nagusia: Corpuz, Federico Nicolas 1925-
Formatua: Visual Material
Hizkuntza:English
Argitaratua: Quezon City Photoduplication Service, University of the Philippines Library 1975.
Gaiak: