@article{ref1,
title="Structure-of-intellect abilities in preliterate children and the mentally retarded",
journal="Monograph of the American Association of Mental Deficiency",
year="1973",
author="Guilford, J. P.",
volume="",
number="1",
pages="46-58",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0098-7123",
doi="",
url="http://dx.doi.org/"
}