Mayer, G. (2004). Union membership trends in the United States. Congressional Research Service, the Library of Congress.
Chicago Style (17th ed.) CitationMayer, Gerald. Union Membership Trends in the United States. [Washington, District of Columbia]: Congressional Research Service, the Library of Congress, 2004.
MLA (9th ed.) CitationMayer, Gerald. Union Membership Trends in the United States. Congressional Research Service, the Library of Congress, 2004.
Warning: These citations may not always be 100% accurate.