@article{ref1,
title="Sociological motivations of delinquency",
journal="American journal of psychiatry",
year="1952",
author="Tappan, P. W.",
volume="108",
number="9",
pages="680-684",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-953X",
doi="",
url="http://dx.doi.org/"
}