Version history for Sleeter, Rachel, and Gould, Michael, 2007, Geographic information system software to remodel population data using dasymetric mapping methods: U.S. Geological Survey Techniques and Methods 11-C2, 15 p. [http://pubs.usgs.gov/tm/tm11c2/]. Version 1.0, May 2, 2008 Initial release online at http://pubs.usgs.gov/tm/tm11c2/