<div class="description">
<p>"June 1935."
</p>
<br>Subjects: Insect pests Biological control</div>
<div class="fn value">
<dl><dd>Knappen, Phoebe</dd>
<dd>United States. Bureau of Biological Survey</dd>
<dd>U.S. Fish and Wildlife Service</dd></dl></div>
Internet Archive identifier