Studies on weeds and rise competition / 
edited by Ishemat Soerinegara. 
 - Bogor, Indonesia :  SEAMEO-BIOTROP,  1985. 
 - v. :  ill. 
 - Semiannual 
<br/><br/> Title from cover. 
<br/><br/>Formed by the union of: Biotropic technical bulletin; BIOTROP bulletin in tropical biology; and: SEAMEO-BIOTROP newsletter. 
<br/><br/><label>ISSN: </label>0216-5023 
<br/><br/><label>LCCN: </label>90012166 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rice--Weed control.<br/>Weeds--Control.