Includes bibliographical references (pages 143-155).
Also available via Internet from the USFS Web site (PDF files). Address as of 4-12-02: http://www.fs.fed.us/pnw/pubs/gtr513/; current access is available via PURL.
Microfiche. [Washington, D.C.] : Supt. of Docs., U.S. G.P.O., 2002 2 microfiches : negative.