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- Nordkalott Project2
- The Survey2
- The Survey ; For sale by Map Distribution2
- Bundesanstalt für Bodenforschung ; UNESCO1
- Geological Survey1
- Institute of Natural Resources, State of Illinois, Illinois State Geological Survey1
- Institutul Geologic1
- Serviços Geológicos de Portugal1
- State of Michigan, Dept. of Natural Resources, Geological Survey1
- The Survey ; Information Services [distributor]1
- U.S. Geological Survey : U.S. Geological Survey, Information Services [distributor]1
- U.S. Geological Survey ; For sale by U.S. Geological Survey, Information Services1
