ebrary, Inc, Schuster, R. L., & Egred, J. (1991). The March 5, 1987, Ecuador earthquakes: Mass wasting and socioeconomic effects. National Academy Press.
Čikaški stil citiranja (17. izdanje)ebrary, Inc, Robert L. Schuster, i José Egred. The March 5, 1987, Ecuador Earthquakes: Mass Wasting and Socioeconomic Effects. Washington, D.C.: National Academy Press, 1991.
MLA način citiranja (9. izdanje)ebrary, Inc, et al. The March 5, 1987, Ecuador Earthquakes: Mass Wasting and Socioeconomic Effects. National Academy Press, 1991.
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