National Research Council (U.S.). Committee on Advances in Navigation and Piloting & ebrary, Inc. (1994). Minding the helm: Marine navigation and piloting. National Academy Press.
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Chicago-čujuhus (17. p.)
National Research Council (U.S.). Committee on Advances in Navigation and Piloting juo Inc ebrary. Minding the Helm: Marine Navigation and Piloting. Washington, D.C.: National Academy Press, 1994.
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MLA-čujuhus (9. p.)
National Research Council (U.S.). Committee on Advances in Navigation and Piloting juo Inc ebrary. Minding the Helm: Marine Navigation and Piloting. National Academy Press, 1994.
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