LAL, R <br/><br/>
Soil Physical properties and crop production in the tropics 

 - Dehra Dun.  International book distributo  rs.        1989 
 - xiv, 552 p 
<br/><br/><label>ISBN: </label>8170891043 
<br/><br/><label>Dewey Class. No.: </label>631.4