@article{ref1,
title="Nationwide school survey shows regulatory need",
journal="Journal of environmental health",
year="1977",
author="Roberts, R. L. and Merriam, R. W.",
volume="39",
number="6",
pages="416-417",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-0892",
doi="",
url="http://dx.doi.org/"
}