@article{ref1,
title="Occupational hazards and black workers",
journal="Urban health",
year="1977",
author="Davis, M. E.",
volume="6",
number="5",
pages="16-18",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0191-8257",
doi="",
url="http://dx.doi.org/"
}