National Research Council (U.S.). Committee on Advanced Drilling Technologies. (1994). Drilling and excavation technologies for the future. National Academy Press, Washington, D.C. : National Academy Press.
Tohutoru Kātū Chicago (17th ed.)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.
Tohutoro MLA (9th ed.)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.
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