Macapanpan, T. H. (1976). The feasibility of establishing a consolidated power system for selected towns in the province of Abra [microform]. Photoduplication Service, University of the Philippines Library.
Lua i Stíl Chicago (17ú heag.)Macapanpan, Tristan H. The Feasibility of Establishing a Consolidated Power System for Selected Towns in the Province of Abra [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1976.
Lua MLA (9ú heag.)Macapanpan, Tristan H. The Feasibility of Establishing a Consolidated Power System for Selected Towns in the Province of Abra [microform]. Photoduplication Service, University of the Philippines Library, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.