"The Influence of a School District's Early Childhood Education Policy on Urban Students' Academic Achievement Towards Advanced Class Placement". Book by Alice P. Bartley, p. 21, 2008.
Eleanor Roosevelt, Harry S. Truman, Steve Neal (2002). “Eleanor and Harry: The Correspondence of Eleanor Roosevelt and Harry S. Truman”, p.279, Simon and Schuster
"Praeger Handbook on Understanding and Preventing Workplace Discrimination". Book edited by Michele A. Paludi, Eros R. DeSouza and Carmen A. Paludi, Jr., 2010.