Description
Item Description:Title from cover.
"August 2005"--P. [i].
Physical Description:iv, 33 pages : illustrations ; 29 cm.
Mode of access: Internet from USDA web site. Address as of 4/13/06: http://www.ers.usda.gov/publications/err7/ (abstract), http://www.ers.usda.gov/publications/err7/err7.pdf (PDF version); current access available via PURL.
Bibliography:Includes bilbiographical references.