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Publisher
- Arctic Climate System (ACSYS)55
- Army Topographic Command,1
- Bureau of the Census1
- C.I.A.1
- Central Intelligence Agency2
- Circuit Rider Productions3
- Geoscience Publications1
- Instituto Brasileiro de Geografia e EstatÃstica5
- International Heat Flow Commission5
- The Agency,1
- The Center,1
- The Command1
- U. S. Army Topographical Command1
- U.S. Topographic Command,1
- United Kingdom1
- United State. Geological Survey1
- United States. Army Topographic Command.4
- United States. Central Intelligence Agency.1
- United States. Geological Survey2
- University of Arizona3