<div class="description">
<dl><dd>15 pages ; 13 cm</dd>
<dd>Cover title</dd>
<dd>Condition reviewed 20160513</dd>
<dd>digitized. 2018</dd></dl><br>Subjects: Water Supply; Drinking Water; Water Purification -- methods</div>
<div class="fn value">
Gate City Stone Filter Co., author</div>
Internet Archive identifier