Anstey R L <br/><br/>
Environments througn time 
Anstey R L; Chase T L 
 -  1954 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>49636 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Petrology<br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H2z7, J4;7