http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
introduction to the botanical type specimen register
1 online resource (v, 186 pages) : illustrations.
Stanwyn G. Shetler, with Mary Jane Petrini [and others].
Includes bibliographical references (pages 185-186).
Information storage and retrieval systems
Smithsonian contributions to botany ; no. 12