<div class="description">
<p>Bibliography: p. 106-115
</p>
<br>Subjects: Tungsten -- Colorado Boulder County; Rocks, Igneous; Mineralogy -- Colorado</div>
<div class="fn value">
<dl><dd>George, Russell D., b. 1866</dd>
<dd>Crawford, R. D. (Ralph Dixon), 1873-</dd></dl></div>
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