Corpuz, F. N. (1975). Age-grade census in relation to grade-progress of the elementary school pupils in the Division of Isabela, 1965-1966 [microform]. Photoduplication Service, University of the Philippines Library.
Chicago Style (17th ed.) CitationCorpuz, Federico Nicolas. Age-grade Census in Relation to Grade-progress of the Elementary School Pupils in the Division of Isabela, 1965-1966 [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.
MLA (9th ed.) CitationCorpuz, Federico Nicolas. Age-grade Census in Relation to Grade-progress of the Elementary School Pupils in the Division of Isabela, 1965-1966 [microform]. Photoduplication Service, University of the Philippines Library, 1975.
Warning: These citations may not always be 100% accurate.