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Author/Creator
- Geological Survey (U.S.)26
- United States. Bureau of the Census. Geography Division9
- United States. Bureau of the Census7
- United States. Bureau of the Census. Agriculture Division6
- United States. Central Intelligence Agency4
- Balster, Clifford A.2
- Fulton County (Ga.). Elections Department2
- Geological Society of America2
- Bailey, Roy A.1
- Banks, Arthur1
- Beck, Warren A.1
- Berkstresser, C. F.1
- Bishop, Gale A.1
- Breu, Josef1
- California. Department of Water Resources1
- DeKalb County (Ga.). Planning Department1
- Earthquake Hazards Program (Geological Survey)1
- Emmett, William W.1
- Enos, Paul, 1934-1
- Florida. Bureau of Geology1