Ferrer, I. (1978). Present land use map, Region II. Bureau of Soils.
Lua i Stíl Chicago (17ú heag.)Ferrer, IA. Present Land Use Map, Region II. Manila: Bureau of Soils, 1978.
Lua MLA (9ú heag.)Ferrer, IA. Present Land Use Map, Region II. Bureau of Soils, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.