Distributed to depository libraries in microfiche.
Shipping list no.: 94-0288-M.
"June 1993."
Includes bibliographical references.
Also available via Internet from the Forest Service web site. Address as of 12/20/04: http://www.srs.fs.usda.gov/pubs/gtr/gtr%5Fpnw311.pdf; current access is available via PURL.
Microfiche. [Washington, D.C.?] : Supt. of Docs., U.S. G.P.O., [1994] 1 microfiche : negative.