Padilla, Hilario <br/><br/>
The Bontoc rice terraces :  high and stable yields 

<br/><br/>bibliogr. p. 6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Production agricole<br/>Riz<br/>Terrasse<br/>Technique agricole
<br/><br/><label>Subjects--Index Terms: </label>Philippines