http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a guide to research and research materials
Electronic reproduction. Boulder, Colo. : NetLibrary, 2000. Available via the World Wide Web. Available in multiple electronic file formats. Access may be limited to NetLibrary affiliated libraries.
Includes bibliographical references and index.
Guides to European diplomatic history research and research materials