http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Worldwide literature of the Lygus complex (Hemiptera: Miridae), 1900-1980
Animal and Plant Health Inspection Service.
compiled by H.M. Graham, A.A. Negm, L.R. Ertle.
Bibliographies and literature of agriculture ; no. 30