Wrather W E Ed. <br/><br/>
Problems of petroleum geology 

 -  1938 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>49384 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Petetrology<br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H7:E555, G4