Hays, W. (1981). Facing geologic and hydrologic hazards: Earth-science considerations. Washington, D.C.: Departament of the Interior, Geological Survey.
Citación estilo ChicagoHays, W.W.. Facing Geologic and Hydrologic Hazards: Earth-science Considerations. Washington, D.C.: Departament of the Interior, Geological Survey, 1981.
Cita MLAHays, W.W.. Facing Geologic and Hydrologic Hazards: Earth-science Considerations. Washington, D.C.: Departament of the Interior, Geological Survey, 1981.
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