@article{ref1,
title="The relationship and prevalence of smoking, drinking and drug taking in (delinquent) adolescent boys",
journal="British journal of addiction to alcohol and other drugs",
year="1969",
author="Backhouse, C. I. and James, I. P.",
volume="64",
number="1",
pages="75-79",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-0890",
doi="",
url="http://dx.doi.org/"
}