Dunrud, C. Richard
Effects of coal mine subsidence in the Sheridan Wyoming Area - Washington, D.C. U.S. Geological Survey 1980 - 49 p. ilus., tlbs.
CARBON
EXPLOTACION MINERA
SUBSIDENCIA
ESTADOS UNIDOS
Effects of coal mine subsidence in the Sheridan Wyoming Area - Washington, D.C. U.S. Geological Survey 1980 - 49 p. ilus., tlbs.
CARBON
EXPLOTACION MINERA
SUBSIDENCIA
ESTADOS UNIDOS