Corby, G. W. (1951). Geology and oil possibilities of the Philippines. Bureau of Print.
Lua i Stíl Chicago (17ú heag.)Corby, Grant W. Geology and Oil Possibilities of the Philippines. Manila: Bureau of Print, 1951.
Lua MLA (9ú heag.)Corby, Grant W. Geology and Oil Possibilities of the Philippines. Bureau of Print, 1951.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.