TY - RPRT TI - Gravitational sliding and the foreland thrust and fold belt of the North American Cordillera: Reply AU - Melville Rhodes Mudge PY - 1971 DO - 10.1130/0016-7606(1971)82[1139:gsatft]2.0.co;2 UR - https://pubs.usgs.gov/publication/70227392 ID - 70227392 ER -