Roberts, H.A.. <br/><br/>
Weed control handbook:principles:Issued by the british crop protection council /  
edited by H.A.Roberts. 
 - 7th Edn. /  
 - Oxford :   Blackwell Scientific Publications ,   1991 
 - xvi,533p :  
<br/><br/><label>ISBN: </label>0-632-01018-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds Biology
<br/><br/><label>Dewey Class. No.: </label>I:54.56  / M2