@techreport{Curtin2014,
author = {Curtin, S.C. and Ventura, S.J. and Martinez, G.M. },
title= {Recent declines in nonmarital childbearing in the United States},
year = {2014},
URL = {http://s3.documentcloud.org/documents/1273985/births.pdf},
publisher = {US Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics},
address = {Washington, D.C.},
number = {NCHS Data Brief No. 162},
}