@article{ref1,
title="College student life-style and frequency of alcohol usage",
journal="Journal of the American College Health Association",
year="1974",
author="Penn, J. R.",
volume="22",
number="3",
pages="220-222",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-7944",
doi="",
url="http://dx.doi.org/"
}