http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Directory of national and international labor unions in the United States, 1961. Listing of national and international unions, State Labor organizations, developments since 1959, structure and membership. Bulletin No. 1320
Labor Statistics Bureau bulletin 1320; Directory of national and international labor unions in U.S., 1961
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ProQuest U.S. Serial Set Digital Collection