<div class="description">
<p>Handwritten on cover: "File copy"
</p>
<br>Subjects: Soil conservation; Water conservation</div>
<div class="fn value">
<dl><dd>Pearson, George A</dd>
<dd>Worley, Harvey L</dd>
<dd>Knibble, Willem G.J</dd>
<dd>United States. Agricultural Research Service. Soil and Water Conservation Research Division</dd></dl></div>
Internet Archive identifier