x  x <br/><br/>
The middle ultraviolet  Its science and technology 

 - x 
 - N.Y.  Wiley  1966 
 - xii, 390 
<br/><br/>x 
<br/><br/><label>ISBN: </label>x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radiantions Radiantions 
<br/><br/><label>Dewey Class. No.: </label>539.72/GRM