@article{ref1,
title="Social Classes in the Light of Modern Sociological Theory",
journal="American journal of sociology",
year="1908",
author="Ward, Lester F.",
volume="13",
number="5",
pages="617-627",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/211620",
url="http://dx.doi.org/10.1086/211620"
}