Putman, J. L. <br/><br/>
Isotopes 
[by] J. L. Putman. 
 - [Harmondsworth, Eng.]  Penguin Books  [1960] 
 - 232 p.  illus.  18 cm. 
 - Pelican books .
<br/><br/><label>Subjects--Index Terms: </label>Radioisotopes 
<br/><br/><label>Dewey Class. No.: </label>541.3/88  / PUT