Gilbert H. Ahlgren <br/><br/>
Principles of weed control 

 - New York  John wiley and Sons Inc.,  1951 
 - 368p 
<br/><br/>Gilbert H. Ahlgren; Glenn C. Klingman & Dale E. Wole: Principles of weed control.  New York.  John wiley and Sons Inc.,, 1951.--(632.58AHL)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>632.58  / AHL