<div class="description">
<dl><dd>Caption title</dd>
<dd>"Reprinted from Agricultural Economic Research, Vol. XVI, No. 3, July 1964."</dd>
<dd>Includes bibliographical references</dd></dl><br>Subjects: Agricultural productivity; Agriculture Economic aspects</div>
<div class="fn value">
<dl><dd>Christensen, Raymond P. (Raymond Peter), 1914-</dd>
<dd>Yee, Harold T</dd></dl></div>
Internet Archive identifier