Ahlgren, Gilbert H.. <br/><br/>
Principles of weed control 
<label>/ by </label> Ahlgren, Gilbert H.. 
<label>;</label> [et al] 
 - New York  John Wiley  1951 
 - vii,368p.  ill.  22cm. 
<br/><br/>L 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds
<br/><br/><label>Dewey Class. No.: </label>632.58  / A