http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Occupational choice and mobility in the urbanizing piedmont of North Carolina
by Richard L. Simpson, David R. Norsworthy, and H. Max Miller, with the assistance of John R. Earle.
"Cooperative research branch project number 722(8403)."