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Publisher
- Geological Survey (U.S.)10
- Geological Survey Division (Urbana, Ill.)10
- War Dept., Corps of Engineers, U.S. Army (U.S.)3
- McGill-Warner Co. (Saint Paul, Minnesota), 19171
- McGill-Warner Co., (St. Paul, Minn.), 19181
- Rand McNally & Co.; Chicago, Illinois 19181
- State of Missouri Bureau of Geology and Mines (Rolla, Mo.)1
- The Branch (Ottawa)1
- [publisher not identified], (St. Paul)1