Asimov, Isaac,  1920-1992. <br/><br/>
Only a trillion / 
Isaac Asimov. 
 - London ;  New York :  Abelard-Schuman,  c1957. 
 - 193 p. :  ill. ;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science.
<br/><br/><label>Dewey Class. No.: </label>500  / ASO