Lua APA (7ú heag.)
ebrary, Inc, & Mileti, D. S. (1991). The Eruption of Nevado del Ruiz volcano, Colombia, South America, November 13, 1985. National Academy Press.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Dennis S. Mileti. The Eruption of Nevado Del Ruiz Volcano, Colombia, South America, November 13, 1985. Washington, D.C.: National Academy Press, 1991.
Lua MLA (9ú heag.)
ebrary, Inc, agus Dennis S. Mileti. The Eruption of Nevado Del Ruiz Volcano, Colombia, South America, November 13, 1985. National Academy Press, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.