@article{ref1,
title="General mortality and the social classes",
journal="Past and present",
year="1953",
author="Childe, V. G. and Morris, John",
volume="4",
number="1",
pages="8-9",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-2746",
doi="10.1093/past/4.1.8",
url="http://dx.doi.org/10.1093/past/4.1.8"
}