Suggested citation and version history for:


  Venezky, Dina Y., and Lowenstern, Jacob, 2008, revised 
       2009, Yellowstone Volcano Observatory [postcard]:  
       U.S. Geological Survey General Information Product 
       77, v. 1.1 [http://pubs.usgs.gov/gip/77/].


  Version 1.1

  May 28, 2009
  Second press run, added photographer


  Version 1.0

  October 15, 2008
  Added junior author

  September 30, 2008
  Initial release online at
  http://pubs.usgs.gov/gip/77/