http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Gregory M. Filip, Jerome S. Beatty, and Robert L. Mathiasen.
Also available via Internet from the Forest Service web site (PDF file only). Address as of 5/24/2000: http://www.fs.fed.us/r6/nr/fid/fidls/firdm.pdf; current access is available via PURL.
Includes bibliographical references (page 7).