Barnes, John W. <br/><br/>
Basic geological mapping 

 - New York :  Halsted,  1981 
 - 106 p.  : ilus. ; gráfs. 
 - Geological Society of London Hanbook .
 - Geological Society of London Hanbook .
<br/><br/><label>LCCN: </label>73222 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geología--Mapas.
<br/><br/><label>Dewey Class. No.: </label>550  / B37