Cita APA (7a ed.)

ebrary, Inc, Schuster, R. L., & Egred, J. (1991). The March 5, 1987, Ecuador earthquakes: Mass wasting and socioeconomic effects. National Academy Press.

Cita Chicago Style (17a ed.)

ebrary, Inc, Robert L. Schuster, y José Egred. The March 5, 1987, Ecuador Earthquakes: Mass Wasting and Socioeconomic Effects. Washington, D.C.: National Academy Press, 1991.

Cita MLA (9a ed.)

ebrary, Inc, et al. The March 5, 1987, Ecuador Earthquakes: Mass Wasting and Socioeconomic Effects. National Academy Press, 1991.