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Dew, Diane S. "Margaret Sanger, Founder of Planned Parenthood, In Her Own Words." A Love I Could Not Deny, by Diane Dew. 2001. Web. 29 Dec. 2010. <http://www.dianedew.com/sanger.htm>.

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Kimball, Linda. "MARGARET SANGER." The Nashif Report- A Christian Perspective. N.p., n.d. Web. 28 Mar. 2011. <http://thenashifreport.com/sanger.html>.

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Margaret Sanger's December 19, 1939 letter to Dr. Clarence Gamble, 255 Adams Street, Milton, Massachusetts. Original source: Sophia Smith Collection, Smith College, North Hampton, Massachusetts. Also described in Linda Gordon's Woman's Body, Woman's Right: A Social History of Birth Control in America. New York: Grossman Publishers, 1976.
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