<div class="description">
<p>Bibliography: p. 116-117
</p>
<br>Subjects: Roots (Botany); Plant ecology; Crops and climate</div>
<div class="fn value">
<dl><dd>Weaver, John E. (John Ernest), 1884-1966</dd>
<dd>Jean, Frank Covert, 1880- joint author</dd>
<dd>Crist, John W., joint author</dd></dl></div>
Internet Archive identifier