(1977). Historia ni Bertoldo nga nalaing a mangibaga ti calinteganna [microform]. Photoduplication Service.University of the Philippines Library.
Citazione stile Chigago Style (17a edizione)Historia Ni Bertoldo Nga Nalaing a Mangibaga Ti Calinteganna [microform]. Quezon City: Photoduplication Service.University of the Philippines Library, 1977.
Citatione MLA (9a ed.)Historia Ni Bertoldo Nga Nalaing a Mangibaga Ti Calinteganna [microform]. Photoduplication Service.University of the Philippines Library, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.