Kyuma, Kazutake <br/><br/>
Fertility evaluation of paddy soils in South and Southeast Asia  first approximation  chemical potentiality rating 
by Kazutake Kyuma & Keizaburo Kawaguchi 
 - Kyoto University, Kyoto  The Center for Southeast Asian Studies  1971 
 - 22 p. ; 28 cm. 
 - Discussion paper  no. 34 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil fertility--South Asia<br/>Soils--South Asia<br/>Soils--Asia, Southeastern<br/>Soil fertility Asia, Southeastern