U.S. Department of Health and Human Services, Administration for Children and Families, Office of Child Care
http://childcare.gov/sites/default/files/StateProfiles/CO.pdf
Alliance for Excellent Education, Education and the Economy: Boosting Colorado’s Economy by Improving High School Graduation Rates
http://www.all4ed.org/files/Colorado_seb.pdf
Colorado Children’s Campaign: Early Childhood
http://www.coloradokids.org/issues/earlychildhood/overview.html
Early Childhood For All – A Wise Investment
http://web.mit.edu/workplacecenter/docs/Full%20Report.pdf
Heckman: The Economics of Human Potential
http://heckmanequation.org