@article{ref1,
title="Ethics and the Neo-Malthusianism",
journal="American journal of sociology",
year="1917",
author="Spalding, H. S.",
volume="22",
number="5",
pages="609-615",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/212665",
url="http://dx.doi.org/10.1086/212665"
}