Payaual, R. B. A study of the community school in Bulacan [microform]. Photoduplication Service.
Chicago-viite (17. p.)Payaual, Rafael B. A Study of the Community School in Bulacan [microform]. Quezon City: Photoduplication Service.
MLA-viite (9. p.)Payaual, Rafael B. A Study of the Community School in Bulacan [microform]. Photoduplication Service.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.