Dennis, John Value, Jr. <br/><br/>
Farmer management of rice variety diversity in Northern Thailand / 
by John Value Dennis Jr 
 - 4 microfiches ;  11 x 15 cm. 
<br/><br/>Thesis (Ph.D.)-Cornell University, 1987 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rice--Varieties.--Thailand<br/>Farm management--Thailand.