http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Contributions from the United States National Herbarium
Contributions from the U.S. National Herbarium
Smithsonian contributions from the U.S. National Herbarium
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Vols. 1-7 published by: United States. Dept. of Agriculture, Division of Botany; v. 8-29 by: United States National Museum.