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- Canada Dept. of Mines and Resources, Mines and Geology Branch, Bureau of Geology and Topography21
- U.S. G.P.O.19
- U.S. Geological Survey19
- Canada Department of Mines and Resources, Mines and Geology Branch, Bureau of Geology and Topography15
- Geological Survey of Canada12
- The Bureau8
- The Office7
- The Administration6
- The Service6
- The Survey5
- War Office5
- Government of Puerto Rico, Department of the Interior,United States Department of the Interior Geological Survey4
- Time Inc.3
- National Geographic Society2
- Rand McNally & Co.2
- U.S. Dept. of the Interior, Geological Survey2
- publisher not identified2
- American Council on Soviet Relations1
- Automobile Club of Southern California1
- Boston Chamber of Commerce1
