http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a new revision of a major succulent group
National Botanical Institute (South Africa)
96 pages : illustrations (some color) ; 31 cm.
Ernst J. van Jaarsveld ; illustrations, Ellaphie Ward-Hilhorst.
Includes bibliographical references (pages 87-89) and index.