@article{ref1,
title="Adult Recreation as a Social Problem",
journal="American journal of sociology",
year="1918",
author="Ross, Edward Alsworth",
volume="23",
number="4",
pages="516-528",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/212773",
url="http://dx.doi.org/10.1086/212773"
}