O'Toole, J. C. <br/><br/>
Drought and rice improvement in perspective / 
J.C. O'Toole and T.T. Chang. 
 - Manila :  International Rice Research Institute,  1978. 
 - 27 p. 
 - IRRI research paper series ; no. 14 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rainfed lowland rice.<br/>Rice--Drought resistance.