<div class="description">
<dl><dd>Cover title</dd>
<dd>"December 1991."</dd>
<dd>Workshop sponsored by U.S. Dept. of Agriculture, Agricultural Research Service, and held in Baltimore, January 1991</dd>
<dd>Includes bibliographical references</dd></dl><br>Subjects: Biological pest control agents United States Congresses; Agricultural pests Biological control United States Congresses; Insect pests Biological control United States Congresses; Weeds Biological control United States Congresses; Arthropod pests Biological control United States Congresses</div>
<div class="fn value">
<dl><dd>Coulson, Jack R., 1931-</dd>
<dd>Soper, Richard S</dd>
<dd>Williams, David W</dd>
<dd>United States. Agricultural Research Service</dd></dl></div>
Internet Archive identifier