Soil physical properties and crop production in the Tropics / 
edited by R. Lal and D.J. Greenland. 
 - Chichester :  John Wiley & Sons,  1979. 
 - xiv, 551 pages ;  24 cm. 
<br/><br/> A Wiley-Interscience publication 
<br/><br/><label>ISBN: </label>0471997579 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Tropics<br/>Soil fertility