ebrary, Inc, & Mileti, D. S. (1991). The Eruption of Nevado del Ruiz volcano, Colombia, South America, November 13, 1985. National Academy Press.
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Chicago-čujuhus (17. p.)
ebrary, Inc, juo Dennis S. Mileti. The Eruption of Nevado Del Ruiz Volcano, Colombia, South America, November 13, 1985. Washington, D.C.: National Academy Press, 1991.
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MLA-čujuhus (9. p.)
ebrary, Inc, juo Dennis S. Mileti. The Eruption of Nevado Del Ruiz Volcano, Colombia, South America, November 13, 1985. National Academy Press, 1991.
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