Sagan, Carl <br/><br/>
Plalnets 
by Carl Sagan, Jonathan Norton Leonard  
 - Hong Kong :  Time Life Books,  1972. 
 - 200p. 
<br/><br/> Time-Life Books 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Planets
<br/><br/><label>Dewey Class. No.: </label>R 500  / SAG N72P