Asimov, Isaac <br/><br/>
Earth : Our crowded Spaceship 

 - New York:  The John Day Company,  1974. 
 - 160p.;  ill.  22cm 
<br/><br/><label>ISBN: </label>0381996253 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology and anthropology
<br/><br/><label>Dewey Class. No.: </label>301  / ASI