<div class="description">
<p>"May 1, 1945"--Cover
</p>
<br>Subjects: Anthracite coal mines and mining Employment Pennsylvania</div>
<div class="fn value">
<dl><dd>Rettie, James C. (James Cardno), 1904-1969</dd>
<dd>Northeastern Forest Experiment Station (Radnor, Pa.)</dd></dl></div>
Internet Archive identifier