Revision History for USGS Professional Paper 1794

  Status and Trends of Land Change in the United States: 
  1973 to 2000

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  Added Volume A, Western United States, at 
  pubs.usgs.gov/pp/1794/a/
  December 5, 2012
  
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  Added Volume B, Great Plains, at 
  https://pubs.er.usgs.gov/publication/pp1794B
  September 3, 2015

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  Added Volume C, Midwest--South Central United States, at 
  https://pubs.er.usgs.gov/publication/pp1794C
  December 9, 2015

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