@article{ref1,
title="The Hierarchy of European Races",
journal="American journal of sociology",
year="1897",
author="Closson, Carlos C.",
volume="3",
number="3",
pages="314-327",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/210710",
url="http://dx.doi.org/10.1086/210710"
}