Cerezo, G. O. (1976). A historical survey of religious instruction in the public schools of the Philippines since 1901 [microform]. Photoduplication Service,University of the Philippines Library.
Chicago-referens (17:e uppl.)Cerezo, Gregrorio O. A Historical Survey of Religious Instruction in the Public Schools of the Philippines Since 1901 [microform]. Quezon City: Photoduplication Service,University of the Philippines Library, 1976.
MLA-referens (9:e uppl.)Cerezo, Gregrorio O. A Historical Survey of Religious Instruction in the Public Schools of the Philippines Since 1901 [microform]. Photoduplication Service,University of the Philippines Library, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.