United States. Congress. House. Committee on Education and Labor (2007), & United States. Congress. Senate. Committee on Health, E. (2008). Elementary and Secondary Act reauthorization: Improving NCLB to close the achievement gap : joint hearing before the Committee on Education and Labor, U.S. House of Representatives, Committee on Health, Education, Labor and Pensions, U.S. Senate, One Hundred Tenth Congress, first session, hearing held in Washington, DC, March 13, 2007. Washington: U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O..

United States. Congress. House. Committee on Education and Labor (2007), and Education United States. Congress. Senate. Committee on Health. Elementary and Secondary Act Reauthorization: Improving NCLB to Close the Achievement Gap : Joint Hearing Before the Committee On Education and Labor, U.S. House of Representatives, Committee On Health, Education, Labor and Pensions, U.S. Senate, One Hundred Tenth Congress, First Session, Hearing Held in Washington, DC, March 13, 2007. Washington: U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2008.

United States. Congress. House. Committee on Education and Labor (2007), and Education United States. Congress. Senate. Committee on Health. Elementary and Secondary Act Reauthorization: Improving NCLB to Close the Achievement Gap : Joint Hearing Before the Committee On Education and Labor, U.S. House of Representatives, Committee On Health, Education, Labor and Pensions, U.S. Senate, One Hundred Tenth Congress, First Session, Hearing Held in Washington, DC, March 13, 2007. Washington: U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2008.