@article{ref1,
title="Prolegomena to Social Psychology. III. The Nature and Task of Social Psychology",
journal="American journal of sociology",
year="1899",
author="Ellwood, Charles A.",
volume="5",
number="1",
pages="98-109",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/210868",
url="http://dx.doi.org/10.1086/210868"
}