Sagan, Carl,  1934- <br/><br/>
Planets / 
Carl Sagan. 
 - New York :  Time-Life Books,  1972. 
 - 200 p. :  ill. ;  28 cm. 
 - Life science library .
<br/><br/>Includes bibliography. 
<br/><br/> Open access. 
<br/><br/><label>LCCN: </label>72181398  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Planets.