(1979). Soil map: Quezon Province, Philippines. Bureau of Soils.
Lua i Stíl Chicago (17ú heag.)Soil Map: Quezon Province, Philippines. Manila: Bureau of Soils, 1979.
Lua MLA (9ú heag.)Soil Map: Quezon Province, Philippines. Bureau of Soils, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.