Manual of industrial radiation protection    Guide on protection against ionising radiations in industrial radiography and fluoroscopy.    

 - Geneva  ILO            1964 
 - viii,62p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>C9B2:25.594.N64, K4