Mercado, R. D., & Taboadoa, T. R. (1980). Comprehensive development plan of the municipality of Sibulan. s.n.].
Lua i Stíl Chicago (17ú heag.)Mercado, Ramon D., agus Tomas R. Taboadoa. Comprehensive Development Plan of the Municipality of Sibulan. [S.l: s.n.], 1980.
Lua MLA (9ú heag.)Mercado, Ramon D., agus Tomas R. Taboadoa. Comprehensive Development Plan of the Municipality of Sibulan. s.n.], 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.