McMichael, C H <br/><br/>
Sparse pre-Columbian human habitation in western Amazonia.  [electronic resource] 

 -  Science (New York, N.Y.)  Jun 2012 
 - 1429-31 p.  digital 
<br/><br/> Publication Type: Historical Article; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>1095-9203 
<br/><br/><label>Standard No.: </label>10.1126/science.1219982  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--history<br/>Brazil<br/>Charcoal<br/>Fossils<br/>History, Ancient<br/>Human Activities--history<br/>Humans<br/>Peru<br/>Plants<br/>Population Dynamics--history<br/>Silicon Dioxide<br/>Soil--analysis<br/>Trees