US Department of Labor. Important events in American labor history, 1778, 1968. US Dept. of Labor.
Chicago Style (17th ed.) CitationUS Department of Labor. Important Events in American Labor History, 1778, 1968. Washington D.C: US Dept. of Labor.
MLA (9th ed.) CitationUS Department of Labor. Important Events in American Labor History, 1778, 1968. US Dept. of Labor.
Warning: These citations may not always be 100% accurate.