Cita 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.
Cita Chicago (17th ed.)
ebrary, Inc, i Dennis S. Mileti. The Eruption of Nevado Del Ruiz Volcano, Colombia, South America, November 13, 1985. Washington, D.C.: National Academy Press, 1991.
Cita MLA (9th ed.)
ebrary, Inc, i Dennis S. Mileti. The Eruption of Nevado Del Ruiz Volcano, Colombia, South America, November 13, 1985. National Academy Press, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.