Ling, Lee <br/><br/>
Weed control by regulating substances/ 
Lee Ling 
 - Washington:  Food and Agrticulture Organization,  1951 
 - viii, 36 p.;  ill.  22 cm.: 
 - FAO Agricultural studies  13 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds--Control<br/>Weeds<br/>Weeds--Ecology<br/>Vegetation management
<br/><br/><label>Dewey Class. No.: </label>632.58