United States, Library of Congress. Legislative Reference Service, Scott, G. W., Beaman, M. G., McClenon, W. H., Gilbert, W. C., & Meyer, H. H. B. (1933). Index to the federal statutes, 1874-1931: General and permanent law contained in the Revised statutes of 1874 and volumes 18-46 of the Statutes at large. U.S. Govt. Print. off..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States, Library of Congress. Legislative Reference Service, George Winfield Scott, Middleton G. Beaman, Walter H. McClenon, Wilfred C. Gilbert, و Herman H. B. Meyer. Index to the Federal Statutes, 1874-1931: General and Permanent Law Contained in the Revised Statutes of 1874 and Volumes 18-46 of the Statutes at Large. Washington: U.S. Govt. Print. off., 1933.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United States, et al. Index to the Federal Statutes, 1874-1931: General and Permanent Law Contained in the Revised Statutes of 1874 and Volumes 18-46 of the Statutes at Large. U.S. Govt. Print. off., 1933.