Charles Peters, and Timothy Noah. "Wrong Harry -- Four million jobs in two years? FDR did it in two months" Slate Jan. 26, 2009 online.[1] (页面存档备份,存于互联网档案馆)
ssa.gov
2013 Status Of The Social Security And Medicare Programs, accessed 16 Oct 2013.[3] (页面存档备份,存于互联网档案馆)
washington.edu
content.lib.washington.edu
The Federal Emergency Relief Administration[2] (页面存档备份,存于互联网档案馆)
web.archive.org
Charles Peters, and Timothy Noah. "Wrong Harry -- Four million jobs in two years? FDR did it in two months" Slate Jan. 26, 2009 online.[1] (页面存档备份,存于互联网档案馆)
The Federal Emergency Relief Administration[2] (页面存档备份,存于互联网档案馆)
2013 Status Of The Social Security And Medicare Programs, accessed 16 Oct 2013.[3] (页面存档备份,存于互联网档案馆)
White house Historical tables. Table 1, accessed 16 Oct 2013.[4] (页面存档备份,存于互联网档案馆)
whitehouse.gov
White house Historical tables. Table 1, accessed 16 Oct 2013.[4] (页面存档备份,存于互联网档案馆)