<div class="description">
<p>Journal of Research of the National Institute of Standards and Technology
</p>
<br>Subjects:  comparison of standards; air kerma;  Co-60;  x-ray standards</div>
<div class="fn value">
<dl><dd>Laitano, RF</dd>
<dd>Lamperti, PJ</dd>
<dd>Toni, MP</dd></dl></div>
Internet Archive identifier