1. The Lewis thrust fault and related structures in the disturbed belt, northwestern Montana Author/Creator: Mudge, Melville R., 1921- author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1980 Resource Type: Book Access & Availability: Loading
2. The Lewis thrust fault and related structures in the disturbed belt, northwestern Montana Author/Creator: Mudge, Melville R., 1921- Publication/Creation: Washington : U.S. Govt. Print. Off, 1980 Resource Type: Book Access & Availability: Loading