Geological magazine : Vol. 98 Iss. 1-6 Year. 1961 

 - [Hertz]  [Stephen Austin & Sons]  [1961] 
 - [V.P.]  ill.  22cm x 15cm   BJ 
<br/><br/><label>ISSN: </label>00167568 13594656 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth science
<br/><br/><label>Dewey Class. No.: </label>550  / GEO