Asimov Isaac <br/><br/>
Exploring the earth and the cosmos / 
Asimov Isaac 
 - New York  Penguin books  1980 
 - 339 pages 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Dewey Class. No.: </label>523.1 ASI-E