<div class="description">
<dl><dd>Caption title</dd>
<dd>"June 1971."</dd>
<dd>Includes bibliographical references</dd></dl><br>Subjects: Balloon logging; Balloon logging Mathematical models; Logging, Aerial Equipment and supplies; Balloon logging; Balloon logging; Logging, Aerial</div>
<div class="fn value">
<dl><dd>Carson, Ward W</dd>
<dd>Peters, Penn A</dd>
<dd>Pacific Northwest Forest and Range Experiment Station (Portland, Or.)</dd></dl></div>
Internet Archive identifier