@misc{Livingston2018,
author = {Livingston, G.},
title= {Is US fertility at an all-time low? It depends},
year = {2018},
URL = {http://www.pewresearch.org/fact-tank/2018/01/18/is-u-s-fertility-at-an-all-time-low-it-depends/},
publisher = {Pew Research Center},
address = {Washington, D.C.},
}