http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Clarification of downgrading provisions of section 507 of Classification act of 1949
Committee on Post Office and Civil Service.
Record is based on bibliographic data in ProQuest U.S. Serial Set Digital Collection (last viewed May 2008). Reuse except for individual research requires license from ProQuest, LLC.
ProQuest U.S. Serial Set Digital Collection