Sill Webster H <br/><br/>
Plant protection discipline: Problems and possible developmental strategies 

 - 2 
 - Ames Iowa   State University Press        1982 
 - xiii,297p.  cm. 
<br/><br/><label>Standard No.: </label>53156 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Plant disease<br/> Plant protection<br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>J:4:5, L8;M2