National Research Council (U.S.). Committee on Research Programs of the U.S. Bureau of Mines & ebrary, Inc. (1994). Research programs of the U.S. Bureau of Mines: First assessment, 1994. National Academy Press.
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Chicago-čujuhus (17. p.)
National Research Council (U.S.). Committee on Research Programs of the U.S. Bureau of Mines juo Inc ebrary. Research Programs of the U.S. Bureau of Mines: First Assessment, 1994. Washington, D.C.: National Academy Press, 1994.
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MLA-čujuhus (9. p.)
National Research Council (U.S.). Committee on Research Programs of the U.S. Bureau of Mines juo Inc ebrary. Research Programs of the U.S. Bureau of Mines: First Assessment, 1994. National Academy Press, 1994.
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