Booker tropical soil manual :  a handbook for soil survey and agricultural land evaluation in the tropics and subtropics / 
edited by J.R. Landon. 
 - Harlow, England :  Longman,  1984. 
 - xiv, 450 p. ;  30 cm. 
<br/><br/> Includes name and subject indexes. 
<br/><br/>Bibliographical references: p. 411-434. 
<br/><br/><label>ISBN: </label>0582460492 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Handbooks, manuals, etc.--Tropics<br/>Soil surveys--Handbooks, manuals, etc.--Tropics<br/>Land capability for agriculture--Handbooks, manuals, etc.--Tropics