@inbook{Barber2013,
author = {Barber, J.S. and Kusunoki, Y. and Gatny, H.H. and Yarger, J.},
title= {Young women’s relationships, contraception and unintended pregnancy in the United States},
year = {2013},
doi = {10.1057/9781137030399_7},
editor = {Buchanan, A.},
editor = {Rotkirch, A.},
booktitle = {Fertility rates and population decline: No time for children?},
address = {London},
publisher = {Palgrave Macmillan},
pages = {121--140},
}