Proceedings of symposium on Paddy soil / 
edited by Institute of Soil Science, Academia Sinica. 
 - Beijing :  Science Press,  1981. 
 - 864 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>3540109005 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rice--Soils--Congresses.<br/>Rice--China--Soils--Congresses.<br/>Soils--China--Congresses.