Software for calculating vegetation disturbance and recovery by using the Equivalent Clearcut Area model [electronic resource] / Alan A. Ager and Caty Clifton.
Imprint
Portland, OR : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, [2005]
Mode of access: Internet from Forest Service web site. Address as of 6/8/05: http://www.fs.fed.us/pnw/pubs/pnw%5Fgtr637.pdf; current access available via PURL.