APA引文

Castillo, J. B. (1979). Some factors affecting achievement in elementary science [microform]. Photoduplication Service. University of the Philippines Library.

Chicago Style (17th ed.) Citation

Castillo, Jovito B. Some Factors Affecting Achievement in Elementary Science [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1979.

MLA引文

Castillo, Jovito B. Some Factors Affecting Achievement in Elementary Science [microform]. Photoduplication Service. University of the Philippines Library, 1979.