http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
genetic vulnerability, use, improvement, and maintenance
21 pages : illustrations, maps ; 20 x 26 cm.
prepared by Agricultural Research Service ; D. K. Barnes [and others].
Technical bulletin (United States. Department of Agriculture) ; no. 1571