Title from title screen (viewed on May 1, 2009). "April 2009."
Technical Details
Mode of access: Internet from the USGS web site. Address as of 5/1/09: http://pubs.usgs.gov/fs/2009/3029/pdf/fs2009-3029.pdf; current access available via PURL.
Action Note
committed to retain. Federal Depository Library Program (FDLP). For information on our retention commitment, please contact Microforms and Government Information.
