Tillah, R. C., & Ko, J. Determinants of palay production.
Lua i Stíl Chicago (17ú heag.)Tillah, Rommel C., agus Jacinto Ko. Determinants of Palay Production.
Lua MLA (9ú heag.)Tillah, Rommel C., agus Jacinto Ko. Determinants of Palay Production.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.