Butler, B. E. <br/><br/>
Soil classification for soil survey 

 - Oxford :  Clarendon,  1980 
 - 129 p.  ; gráfs. 
<br/><br/><label>LCCN: </label>26270 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos--Clasificación.<br/>Suelos--Topografía.
<br/><br/><label>Dewey Class. No.: </label>631.44  / B84