AHN , P . M .  <br/><br/>
TROPICAL SOIL AND FERTILISER USE 
PETER MARTIN AHN 
 - UK  LONGMAN SCIENTIC & TECHNICAL  1993 
 - xii , 264p.:ill.;  Hbk 
<br/><br/><label>ISBN: </label>0582775078 
<br/><br/><label>LC Class. No.: </label>S607 .A4 1993