Tohutoro APA (7th ed.)
ebrary, Inc, & Mileti, D. S. (1991). The Eruption of Nevado del Ruiz volcano, Colombia, South America, November 13, 1985. National Academy Press.
Tohutoru Kātū Chicago (17th ed.)
ebrary, Inc, me Dennis S. Mileti. The Eruption of Nevado Del Ruiz Volcano, Colombia, South America, November 13, 1985. Washington, D.C.: National Academy Press, 1991.
Tohutoro MLA (9th ed.)
ebrary, Inc, me Dennis S. Mileti. The Eruption of Nevado Del Ruiz Volcano, Colombia, South America, November 13, 1985. National Academy Press, 1991.
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