The control of weeds: a symposium on the prevention and eradiction of weeds on agricultural land by cultural, chemical and biological means  (Book) 

 - Aberystwyth  Imperial Bureau of Pastures and Forage Crops  1940 
 - 168 p.   24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds Biological control
<br/><br/><label>Universal Decimal Class. No.: </label>632.954 CON  / 2280