Suggested citation and version history for


  Bird, Kenneth J., Charpentier, Ronald R., Gautier, 
       Donald L., Houseknecht, David W., Klett, Timothy R., 
       Pitman, Janet K., Moore, Thomas E., Schenk, 
       Christopher J., Tennyson, Marilyn E. and Wandrey, 
       Craig J., 2008, Circum-Arctic resource appraisal; 
       estimates of undiscovered oil and gas north of the 
       Arctic Circle:  U.S. Geological Survey Fact Sheet 
       2008-3049, 4 p. 
       [http://pubs.usgs.gov/fs/2008/3049/].


  Version 1.0, July 23, 2008

  Initial release online at
  http://pubs.usgs.gov/fs/2008/3049/