Description
Item Description:Title from title screen (viewed on July 22, 2008).
"December 2007."
Electronic resource.
Physical Description:iv, 22 pages : digital, PDF file.
Format:Mode of access: Internet from the USDA web site. Address as of 7/22/2008: http://www.ers.usda.gov/Publications/ERR53/ERR53.pdf ; current access is available via PURL.
Bibliography:Includes bibliographical references (pages 15-16).