Report   Proceedings of section 5 

 - Prague  Academia          1968 
 - 169p.  cm. 
<br/><br/><label>Standard No.: </label>26287 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GEOLOGY
<br/><br/><label>Dewey Class. No.: </label>Hp1,N68, K8