http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Productivity Measurement Advisory Service.
Issued by: Organisation for European Economic Co-operation, European Productivity Agency, Productivity Measurement Advisory Service, May 1956-Aug. 1961; Organisation for Economic Co-operation and Development, European Productivity Agency, Productivity Measurement Advisory Service, Oct. 1961-Nov. 1965.