Description
Item Description:"January 2006."
Physical Description:23 pages : illustrations ; 28 cm.
Mode of access: Internet from the Forest Service web site. Address as of 1/3/07: http://www.treesearch.fs.fed.us/pubs/21806 (abstract), http://www.fs.fed.us/pnw/pubs/pnw%5fgtr668.pdf (PDF version); current access available via PURL.
Bibliography:Includes bibliographical references (pages 19-20).