@article{ref1,
title="The Reliability and Validity of Interview Data Obtained from 59 Narcotic Drug Addicts",
journal="American journal of sociology",
year="1967",
author="Ball, J. C.",
volume="72",
number="6",
pages="650-654",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/224401",
url="http://dx.doi.org/10.1086/224401"
}