Introduction and effects of high-yielding varieties of rice in the P hilippines. 

 - Rome :    Food and Agriculture Organization,    1971. 
 - viii, 47 p. ;    28 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Rice -- Philippines.<br/> Rice -- Varieties.