@article{ref1,
title="Pesticide use by agriculture: some relevant economic problems",
journal="Canadian Medical Association journal",
year="1969",
author="Headley, J. C.",
volume="100",
number="4",
pages="141-144",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0008-4409",
doi="",
url="http://dx.doi.org/"
}