توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

United States. Department of Labor. (1979). Important events in American labor history, 1778-1978. The Dept. : for sale by the Supt. of Docs., U.S. Govt. Print. Off.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

United States. Department of Labor. Important Events in American Labor History, 1778-1978. [Washington, D.C.]: The Dept. : for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1979.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

United States. Department of Labor. Important Events in American Labor History, 1778-1978. The Dept. : for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1979.