http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Field guide for the biological control of weeds in eastern North America
Biological control in eastern North America
Technology transfer (United States. Forest Health Technology Enterprise Team)
Forest Health Technology Enterprise Team,
1 online resource (331 pages) : color illustrations.
Includes bibliographical references (pages 288-323) and index.
Insects as biological pest control agents