<div class="description">
<dl><dd>Cover title</dd>
<dd>"Delivered as a paper at the Annual Meeting of the American Farm Economic Association, Philadelphia, Pennsylvania, December 28, 1939."</dd></dl><br>Subjects: Milk yield Research</div>
<div class="fn value">
<dl><dd>Jensen, Einar, 1896-</dd>
<dd>United States. Bureau of Agricultural Economics</dd></dl></div>
Internet Archive identifier