Brabb, E. E., and B. L. Harrod. 1989. Landslides: Extent and Economic Significance. Brookfield, VT: A. A. Balkema.

Dennen, W. H., and B. R. Moore. 1986. Geology and Engineering. Dubuque, IA: Wm. C. Brown Publishers.

McPhee, J. 1989. The Control of Nature. New York: Noonday Press.

Nuhfer, E. B., R. J. Proctor, and P. H. Moser. 1993. The Citizens' Guide to Geologic Hazards. Arvada, CO: American Institute of Professional Geologists.

Ritter, D. F., R. C. Kochel, and J. R. Miller. 1995. Process Geomorphology. 3d ed. Dubuque, IA: Wm. C. Brown Publishers.

Turner, A. K., and R. L. Schuster, eds. 1996. Landslides: Investigation and Mitigation. Transport Research Board Special Report 247. Washington, D.C.: National Academy of Sciences.