Spencer, Edgar Winston.  <br/><br/>
Basic concepts of historical geology / 
Edgar Winston Spencer. 
 - New Delhi :  Oxford & IBM co,   c 1970. 
 - xvi, 469 p. :  ill. ;  27 cm. 
<br/><br/> Includes index. 
<br/><br/>331  331 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology.
<br/><br/><label>Dewey Class. No.: </label>551 / S33b