Roldan, C. C. Economic feasibility study of alcogas in the Philippines.
Lua i Stíl Chicago (17ú heag.)Roldan, Charito C. Economic Feasibility Study of Alcogas in the Philippines.
Lua MLA (9ú heag.)Roldan, Charito C. Economic Feasibility Study of Alcogas in the Philippines.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.