1. Pre-Wisconsin glacial drift in the region of Glacier National Park, Montana;Alden;Geological Society of America Bulletin,1912
2. Early Pleistocene glaciation in the Rocky Mountains of Glacier National Park, Montana;Alden,1914
3. Physiography and glacial geology of eastern Montana and adjacent areas;Alden;U.S. Geological Survey Professiional Paper,1932
4. Physiography and glacial geology of western Montana and adjacent areas;Alden;U.S. Geological Survey Professional Paper,1953
5. Pre-Wisconsin glacial drift in the region of Glacier National Park, Montana;Alden;Geological Society of America Bulletin,1913