Weed control handbook. vol I  principles 
<label>;</label> Fryer, J.D. <label>;</label> Evans, S. A 
 - 5th ed. 
 - Oxford  Blackwell Scientific  1968 
 - xx, 494p.  ill.  23 cm. 
<br/><br/><label>Dewey Class. No.: </label>632.5802  / BRI