http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a summary of Recent economic changes in the United States
A summary of the Report of the Committee on Recent economic changes, of the President's Conference on unemployment, Herbert Hoover, chairman, including the reports of a special staff of the National Bureau of Economic Research, inc.
Recent economic changes in the United States
Conference on Unemployment (1921 : Washington, D.C.).