@article{ref1,
title="School subject preference and the structure of value systems",
journal="Perceptual and motor skills",
year="1964",
author="Bortner, Rayman W.",
volume="18",
number="3",
pages="741-747",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0031-5125",
doi="10.2466/pms.1964.18.3.741",
url="http://dx.doi.org/10.2466/pms.1964.18.3.741"
}