Karweit Michael, Winkle Jon van, & Johns Hopkins University. Experiment , drilling for oil.
Lua i Stíl Chicago (17ú heag.)Karweit Michael, Winkle Jon van, agus Johns Hopkins University. Experiment , Drilling for Oil.
Lua MLA (9ú heag.)Karweit Michael, et al. Experiment , Drilling for Oil.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.