<div class="description">
<dl><dd>Cover title</dd>
<dd>Contribution from the Office of Public Roads and Rural Engineering</dd>
<dd>Revision of Department bulletin 71</dd>
<dd>"Professional paper."</dd></dl><br>Subjects: Wetlands; Drainage</div>
<div class="fn value">
Okey, Charles W. (Charles William), 1886-</div>
Internet Archive identifier