Publisher
- Dept. of Mines8
- Kentucky Geological Survey8
- The Survey ; For sale by Alaska Distribution Section ; Map Distribution8
- The Survey ; For sale by U.S. Geological Survey Information Services8
- The Survey ; U.S. Geological Survey Information Services [distributor]8
- Tryckt i Gen. Stabs. Litogr. Anstalt8
- U.S. Geological Survey ; For sale by U.S. Geological Survey, Information Services8
- British Geological Survey7
- Geological Survey of Canada, Dept. of Mines and Technical Surveys7
- The Survey ; For sale by Branch of Distribution, U.S. Geological Survey7
- The Survey ; Open-File Reports Section, distributor7
- publisher not identified7
- Canada, Dept. of Mines and Technical Surveys, Geological Survey of Canada6
- Comissão da Carta Geológica do Paraná6
- Dept. of Mines, Geological Survey Branch6
- Instituto de Geociências, Universidade Federal do Rio Grande do Sul6
- Kentucky Geological Survey, Williams & Heintz Co.)6
- The Division6
- The Survey ; Alaska Distribution Section ; For sale by Map Distribution6
- s.n.6
