Sombroek, W. G. <br/><br/>
Amazon soils  : a reconnaissance of the soils of the Brazilian Amazon region 

 - Wageningen :  Centro for Agricultural Publications and Documentation,  1966 
 - 292 p.  : ilus. ; mapas 
<br/><br/><label>LCCN: </label>57329 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos--Brasil.
<br/><br/><label>Dewey Class. No.: </label>631.4981  / S6