@article{ref1,
title="Is Class Conflict in America Growing and Is It Inevitable?",
journal="American journal of sociology",
year="1908",
author="Commons, John R.",
volume="13",
number="6",
pages="756-783",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/211631",
url="http://dx.doi.org/10.1086/211631"
}