And the first link has all of their sources listed. Every single one. But since you didn't see them, here they are again.
1 Richard Vedder, Lowell Gallaway, and Stephen Moore, Immigration and Unemployment: New Evidence,Alexis de Tocqueville Institution, Arlington, VA (Mar. 1994) at p. 13.
2 Maria E. Enchautegui, “The Effect of Immigration on the Wages and Employment of Black Males,” Urban Institute, Washington, D.C. (May 1993) at p. 17.
3 The New Americans, National Research Council, 1997, p. S-5.
4 Jeffrey S. Passel, Immigrants and Taxes: A Reappraisal of Huddle’s ‘The Cost of Immigration’, The Urban Institute, Washington, D.C. (Jan. 1994) at p. 51.
5
http://www.columbia.edu/~flr9/6 Council of Economic Advisers. Economic Report of the President 2003, Table B-37.
7 Daniel E. Hecker, “Occupational Employment Projections to 2010,” Monthly Labor Review (Nov. 2001).
8
http://www.immigrationforum.org/about/articles/tax_study.htm.9
http://www.urban.org/url.cfm?ID=90009410 Testimony of Ronald D Lee, Member, National Academy of Sciences Panel on the Demographic and Economic Impacts of Immigration, Before the Senate Immigration Subcommittee, “Economic and Fiscal Impact of Immigration,” (Sept. 9, 1997).
11 Ibid.
12 Ibid.
13 The New Americans, supra note 3.
14 Julian L. Simon, “Immigration: The Demographic and Economic Facts,” Cato Institute and National Immigration Forum (Dec. 11, 1995).
15 Ibid.
16 Griswold, Daniel T., “Immigrants Have Enriched American Culture and Enhanced Our Influence in the World,” Insight on the News (Feb. 18, 2002).
17 The New Americans, supra note 3.
18 Ibid.
19 Simon Romero and Janet Elder, “Hispanics in the U.S. Report Optimism,” New York Times (Aug. 6, 2003).
20 Ibid.
21
http://www.cato.org/pubs/handbook/hb105-29.html.22 Ibid.
23 American Immigration Law Foundation (AILF) Policy Report “Realities of Immigration Emerge in 2000 Census” (Mar. 2002).
24 Elizabeth Grieco, “English Abilities of the U.S. Foreign-Born Population,” Migration Policy Institute (Jan. 1, 2003).
25 The New Americans, supra note 3. The report stated that, according to the 1990 Census, “of those who had been here 30 years or more, only 3 percent reported that they could not speak English well.”
26
http://www.cato.org/pubs/handbook/hb105-29.html.27 Stuart Anderson, “Muddled Masses,” Reason (Feb. 2000).
28 Testimony of Alan Greenspan before the Special Committee on Aging, U.S. Senate (Feb. 27, 2003).
29 Science and Engineering Indicators 2002, National Science Foundation.
30 AILF Policy Report, “U.S. Soldiers from Around the World: Immigrants Fight for an Adopted Homeland” (updated Mar. 2003).
31 Ibid.
32 Ibid.
33 Ibid.