@article{ref1,
title="Family size and the black American",
journal="Population bulletin",
year="1974",
author="",
volume="30",
number="4",
pages="1-26",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0032-468X",
doi="",
url="http://dx.doi.org/"
}