@article{ref1,
title="Socio-demographic variables associated with drug use at a New England college",
journal="International journal of social psychiatry",
year="1971",
author="Steffenhagen, R. A. and McAree, C. P. and Persing, B. F.",
volume="17",
number="4",
pages="277-286",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0020-7640",
doi="",
url="http://dx.doi.org/"
}