(2001). Gas field, nadiskubre ng Shell. Kabayan.
Lua i Stíl Chicago (17ú heag.)"Gas Field, Nadiskubre Ng Shell." Kabayan 2001.
Lua MLA (9ú heag.)"Gas Field, Nadiskubre Ng Shell." Kabayan, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.