Siebert, Stephen Frederic <br/><br/>
Soil erosion and conservation farming in Kerinci, Sumatra  [microform] / 
by Stephen Frederic Siebert 
 - Ann Arbor, Mich. :  University Microfilms International ,  1990 
 - 2 microfiches ;  11 x 15 cm. 
<br/><br/>Thesis (Ph.D.) - Cornell University, 1990 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil erosion--Indonesia<br/>Soil conservation--Indonesia