@article{ref1,
title="Reassessment of middle-class delinquency",
journal="Youth and society",
year="1971",
author="Polk, K.",
volume="2",
number="3",
pages="333-353",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0044-118X",
doi="",
url="http://dx.doi.org/"
}