Elliott, J. G. <br/><br/>
The WRO 
/ Letcombe joint tillage project in its closing stages 
<br/><br/> Sobretiro de : Report ARC Research Organization, 1976-77 pp. 55-56 
<br/><br/><label>LCCN: </label>33287 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labranza--Efecto en suelos