Smith Jeffrey A., McPherson, Miller, and Lynn Smith-Lovin. Forthcoming. 2014. “Social Distance in the United States: Sex, Race, Religion, Age and Education Homophily among Confidants, 1985-2004.” American Sociological Review. 79: 432-456.
Park, Nicholas K., and Patricia Wonch Hill. 2013. "Is Adoption an Option? The Role of Importance of Motherhood and Fertility Help-Seeking in Considering Adoption." Journal of Family Issues doi: 10.1177/0192513X13493277.