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- U.S. Geological Survey78
- The Survey41
- Comissão da Carta Geológica do Paraná4
- Geological Survey of Alabama4
- Printed by the Government Printer3
- Geological Survey of Canada2
- Delaware Geological Survey1
- Department of Resources and Economic Development1
- Dept. of Interior, U.S. Geological Survey1
- Geological Survey1
- Glavnoe upravlenie geodezii i kartografii Min-va geologii SSSR,Главное управление геодезии и картографии Мин-ва геологии СССР1
- New Hampshire Dept. of Resources and Economic Development1
- Québec, Ministère des richesses naturelles1
- Service de la carte géologique de la France1
- Servicio de Publicaciones, Ministerio de Industria y Energia1
- State of Tennessee, Division of Geology1
- U.S Geological Survey1
- U.S. Geolgocial Survey1
- Ústřední ústav geologický1
