Rotor, D. R. A study of the development, practices and contributions of S.V.D. institutions in the Province of Abra [microform]. Photoduplication Service.
Chicago-referens (17:e uppl.)Rotor, Demetrio R. A Study of the Development, Practices and Contributions of S.V.D. Institutions in the Province of Abra [microform]. Quezon City: Photoduplication Service.
MLA-referens (9:e uppl.)Rotor, Demetrio R. A Study of the Development, Practices and Contributions of S.V.D. Institutions in the Province of Abra [microform]. Photoduplication Service.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.