• Chauncey, George. Why Marriage?: The History Shaping Today’s Debate over Gay Equality. New York: Basic, 2004.
• Coontz, Stephanie. The Way We Never Were: American Families and the Nostalgia Trap. New York, NY: Basic, 1992.
• Gallagher, Maggie, and Joshua K. Baker. “Do Mothers and Fathers Matter?  The Social Science Evidence on Marriage and Child Well-Being.” www.imapp.org, 27 Feb. 2004.
• Marquardt, Elizabeth. “How Redefining Marriage Redefines Parenthood.” www.ionainstitute.ie/, n.d.
• Ritter, Malcolm. “Good Marriage Equals Good Blood Pressure.” USA Today, 20 Mar. 2008.
• Wilcox, William Bradford. Why Marriage Matters: Twenty-six Conclusions from the Social Sciences: A Report from Family Scholars. New York: Institute for American Values, 2005.
• Haworth, Abigail.  “Why have young people in Japan stopped having sex?”  www.theguardian.com.  19 October 2013.
• Stanton, Glenn T. and Dr. Bill Maier.  Marriage on Trial: The Case Against Same-Sex Marriage and Parenting.   IVP Books. 2004.