Alden, William C. (William Clinton), b. 1871.
Alden, William C. (William Clinton), b. 1871.
Geological Survey professional paper ; 231
Physiography and glacial geology of western Montana and adjacent areas; a study of glacial features in the intermontane valleys and the drainage area of the upper Missouri and Columbia Rivers.
Physiography and glacial geology of western Montana and adjacent areas; a study of glacial features in the intermontane valleys and the drainage area of the upper Missouri and Columbia Rivers.
Physiography and glacial geology of western Montana and adjacent areas;
Alden, William C. (William Clinton), b. 1871.