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Lua i Stíl Chicago (17ú heag.)National Research Council (U.S.). Committee on Advanced Drilling Technologies. Drilling and Excavation Technologies for the Future. Washington, D.C.: National Academy Press, Washington, D.C. : National Academy Press, 1994.
Lua MLA (9ú heag.)National Research Council (U.S.). Committee on Advanced Drilling Technologies. Drilling and Excavation Technologies for the Future. National Academy Press, Washington, D.C. : National Academy Press, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.