Wilson Harold K <br/><br/>
Identification and judging of crops, weeds and diseases 

 -  1940 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>56809 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>J:91, H0   CS