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- U.S. Geological Survey6
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- Dept. of the Interior, U.S. Geological Survey2
- Canada, Dept. of Mines and Technical Surveys, Geological Survey of Canada1
- Direcção Geral de Geologia e Minas, Serviços Geológicos de Portugal : Instituto Nacional de Engenharia, Tecnologia e Inovação1
- Ministère des colonies, Commission de géologie1
- New Hampshire Planning and Development Commission and Highway Department1
- Servicos Geologicos de Portugal1
- The Commission1
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