Rohn, Arthur H, <br/><br/>
Prehistoric soil and water conservation on chapin Mesa, Southwestern Colorado 

 -  1963 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sistema de terrazas<br/>Suelos<br/>Agua<br/>Conservación<br/>Ecología
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Estados Unidos<br/>Colorado