@techreport{Payne2012a,
author = {Payne, K.K. },
title= {Median age at first marriage, 2010},
year = {2012a},
URL = {http://ncfmr.bgsu.edu/pdf/family_profiles/file109824.pdf},
publisher = {Bowling Green State University: National Center for Family and Marriage Research (fp-12-07)},
}