Ballard, Robert D <br/><br/>
Exploring our living planet 

 - Washington  National geographic society  1983 
 - 366p.  29cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Planet earth<br/>Fire<br/>Plate tectonics<br/>Geology<br/>Crust<br/>Mountains<br/>Mountains
<br/><br/><label>Dewey Class. No.: </label>551.136  / BAL