Mezentsev, V. <br/><br/>
In the world of isotopes / 
V. Mezentsev. 
 - 52 p, :  ill. ;  21 cm. 
<br/><br/>It includes bibliographical information 
<br/><br/><label>Subjects--Topical Terms: </label><br/>fiction
<br/><br/><label>Dewey Class. No.: </label>040  / MEZ