http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
"Based on a book published by the U.S. Department of Labor titled the Occupational Outlook Handbook"--p. ix.
Electronic reproduction. Boulder, Colo. : NetLibrary, 2004. Available via World Wide Web. Access may be limited to NetLibrary affiliated libraries.