http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Selected parasites and hyperparasites of the gypsy moth, with keys to adults and immatures
Combined Forest Pest Research and Development Program (U.S.)
1 online resource (59 pages) : illustrations
by Edward E. Simons, Richard C. Reardon, and Mark Ticehurst.
Includes bibliographical references (pages 39-44).
Agriculture handbook (United States. Department of Agriculture) ; no. 540