http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Collecting, handling and releasing Rhinocyllus conicus, a biological control agent of musk thistle
7 pages : illustrations (some color), 1 map ; 28 cm.
Agriculture handbook (United States. Department of Agriculture) ; no. 579