@article{ref1,
title="The Philadelphia Gas Works: A Modern Instance",
journal="American journal of sociology",
year="1898",
author="Clinton Rogers Woodruff, ",
volume="3",
number="5",
pages="601-613",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/210739",
url="http://dx.doi.org/10.1086/210739"
}