Introduction and effects of high-yielding varieties of rice in the Philippines 
Food and Agriculture Organization of the United Nations 
 - Rome  FAO  1971 
 - viii, 47 p .  ill.;  28cm 
<br/><br/> "Study prepared by W.W. Thamm under the supervision of J.W. Couston, assisted by S.P. Malhotra" - foreword 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rice--Philippines<br/>Rice--Varieties