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- Geological Survey (U.S.)19
- Ontario. Department of Mines3
- United States. Forest Service2
- Beards, R. J.1
- Canadian Hydrographic Service1
- Card, K. D.1
- Carlson, V. A.1
- Dadet, P. (Paul)1
- Georg Westermann Verlag1
- Georg Westermann Verlag, cartographer, publisher1
- Iowa Geological Survey1
- Kuchler, A. W.1
- Philippines. Bureau of the Census and Statistics. Geography Division, cartorapher1
- Québec (Province). Geological Services1
- Québec (Province). Direction générale des mines. Service de la cartographie1
- Rollet, Michel, author1
- Serviços Geológicos de Portugal1
- Stoll, H. George1
- United States. Forest Service. Eastern Region1
- United States. Forest Service. Northern Region, cartographer1
