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Author/Creator
- Geological Survey (U.S.)97
- Library of Congress. Congressional Research Service80
- United States. Congress. House75
- United States70
- United States. Congress. Senate50
- United States. War Dept41
- ebrary, Inc35
- United States. Department of the Interior33
- Geological Survey (U.S.), issuing body32
- United States. Geological Survey31
- Project Muse30
- SpringerLink (Online service)30
- United States. Department of State25
- Bellin, Jacques Nicolas, 1703-177223
- Monmonier, Mark S.22
- France. Dépôt des cartes et plans de la marine21
- Bellin, Jacques Nicolas20
- U.S. Coast and Geodetic Survey18
- United States. Army Map Service17
- Great Britain. Ordnance Survey16