Steers, J. A.  <br/><br/>
The unstable earth 
J. A. Steers 
 - London  Methuen  1950 
 - xv+345p.  figs; index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth
<br/><br/><label>Universal Decimal Class. No.: </label>551.4  / STE