James H. Gary
United States. General Accounting Office
Morgan Downey
Unknown Author
United States. Congress. Senate. Committee on Finance
Sarah Morgan
Sandra Marton
American Society for Testing and Materials
Anthony Terrell Seward Sampson
Laura Restrepo
Ida Minerva Tarbell
Craig Unger
R. J. Forbes
I. D. Mall
United States. Bureau of Labor Statistics.
Donald P. Helander
R. A. Montgomery
Beijing Shi di fang zhi bian zuan wei yuan hui
B. Traven