http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Contains information on plant material introduced into the US National Plant Germplasm System.
United States Department of Agriculture, Agricultural Research Service.
Formerly distributed to depository libraries in microfiche.
Title from cover (viewed June 19, 2000).
Mode of access: Internet at the USDA web site. Address as of 6/19/2000: http://www.barc.usda.gov/psi/ngrl/pibook/pibook.htm; current access is available via PURL.
System requirements: Adobe Acrobat software which is available for download.