Hays, W. (1981). Facing geologic and hydrologic hazards: Earth-science considerations. Washington, D.C.: Departament of the Interior, Geological Survey.
Chicago Style CitationHays, W.W.. Facing Geologic and Hydrologic Hazards: Earth-science Considerations. Washington, D.C.: Departament of the Interior, Geological Survey, 1981.
MLA CitationHays, W.W.. Facing Geologic and Hydrologic Hazards: Earth-science Considerations. Washington, D.C.: Departament of the Interior, Geological Survey, 1981.
Warning: These citations may not always be 100% accurate.