http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Robert Cornelius, portraits from the dawn of photography
National Portrait Gallery (Smithsonian Institution)
by William F. Stapp ; contributing authors, Marian S. Carson, M. Susan Barger.
"An exhibition at the National Portrait Gallery, October 20, 1983, to January 22, 1984"--2nd prelim. p.