%0 Journal Article %T Fifty years of unintended births: Education gradients in unintended fertility in the US, 1960-2013 %A Hayford, Sarah R. %A Guzzo, Karen Benjamin %D 2016 %R 10.1111/j.1728-4457.2016.00126.x %P 313-341 %J Population and Development Review %V 42 %I 2 %2 ISSN: 0098-7921