http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
viii, 521 pages : illustrations ; 24 cm.
proceedings of a symposium held May 4, 5, and 6, 1967, at the University of Missouri, Columbia.
"Organized by the National Academy of Sciences."
Publication (National Research Council (U.S.)) ; no. 1598