Lal, Rattan. <br/><br/>
Tillage systems in the tropics :  management options and sustainability implications / 
by Rattan Lal. 
 - Rome :  FAO,  1995. 
 - xviii, 206 p. :  ill., maps. 
 - FAO soils bulletin ;  71. .
<br/><br/><label>ISBN: </label>9251037760 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tillage--Tropics.