<div class="description">
<dl><dd>Distributed to depository libraries in microfiche</dd>
<dd>"December 1984."</dd>
<dd>Bibliography: p. 34</dd></dl><br>Subjects: Landscape; Landscape assessment; Landscape protection; Landscape gardening; Visual acuity; Visual perception</div>
<div class="fn value">
<dl><dd>Litton, R. Burton</dd>
<dd>United States. Forest Service</dd></dl></div>
<dl><dd><a rel="nofollow" class="external free" href="https://archive.org/details/visualvulnerabil39litt">https://archive.org/details/visualvulnerabil39litt</a></dd>
<dd><a rel="nofollow" class="external free" href="https://archive.org/download/visualvulnerabil39litt/visualvulnerabil39litt.pdf">https://archive.org/download/visualvulnerabil39litt/visualvulnerabil39litt.pdf</a></dd></dl>