http://www.theatlantic.com/business/archive/2013/11/why-is-childcare-getting-so-expensive/281394/
http://www.pewresearch.org/fact-tank/2014/04/08/rising-cost-of-child-care-may-help-explain-increase-in-stay-at-home-moms/
http://money.cnn.com/2013/11/04/pf/child-care-costs/
http://futureofchildren.org/publications/journals/article/index.xml?journalid=63&articleid=408§ionid=2781
http://singleparents.about.com/od/legalissues/p/portrait.htm
http://www.theatlantic.com/business/archive/2013/09/the-mysterious-and-alarming-rise-of-single-parenthood-in-america/279203
http://dailyinfographic.com/divorce-in-america-infographic
http://www.cdc.gov/nchs/nvss/marriage_divorce_tables.htm
http://www.webmd.com/infertility-and-reproduction/guide/in-vitro-fertilization
https://www.sartcorsonline.com/rptCSR_PublicMultYear.aspx?ClinicPKID=0
http://www.huffingtonpost.com/carrie-smith/building-a-family-is-goin_b_3304149.html
http://money.cnn.com/gallery/pf/2014/08/18/children-costs/5.html
https://www.childwelfare.gov/adoption/history.cfm
http://www.prb.org/Publications/Datasheets/2012/world-population-data-sheet/fact-sheet-us-population.aspx
http://www.gallup.com/poll/164618/desire-children-norm.aspx
http://www.goodreads.com/author/quotes/59966.Amy_Chua
http://www.nysun.com/opinion/why-i-let-my-9-year-old-ride-subway-alone/73976/
http://www.webmd.com/parenting/what-is-attachment-parenting
Research by Jordan Kranzler, Annika Olives, Emily Shen, Cleo Wienbar, Virginia Hsiao, and Leila Lukaszewicz.
