Powell Fred Wilbur <br/><br/>
Bureau of plant industry 
Powell Fred Wilbur 
 -  1927 
 - p.  cm. 
 - Institute for government research of the brookimg institution, service monographs of the United States government; 47 .
<br/><br/><label>Standard No.: </label>51269 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>Jh73:1:N3, F7