Beiser, Arthur. <br/><br/>
Our earth :  the properties of our planet, how they were discovered, and how they came into being. 

 - London :  Arco,  1961. 
 - 149 p. :  illus. ;  19 cm. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Earth (Planet)
<br/><br/><label>Dewey Class. No.: </label>551  / BEO 1961