http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
McLean card catalogue of American foraminifera, volumes I-XIX; McLean card catalogue of ostracoda, volumes I-XIII; H. S. Puri card catalogue of recent ostracoda, volumes I-XI part
McLean Paleontological Laboratory, Alexandria, Va
"An alphabetical listing of all species contained in the several card catalogues as of December 31, 1969."