Harper, David E., <br/><br/>
Sustainable agriculture on slopes  the effectiveness of international development projects in fostering soil conservation in north Thailand 
by David E.Harper. 
 - Honolulu  University of Hawaii  1986. 
 - 469 pages ;    21 cm. 
<br/><br/>Thesis (Ph.D)-University of Hawaii, 1986 
<br/><br/>p. 442 - p. 469 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation--Thailand