Blum, Harold Francis. <br/><br/>
Photodynamic action and disease caused by light (A.C.S.85)   
by Harold Francis Blum. 
 - New York  Reinhold Pubg.Corpn.  1941 
 - A.C.S.85 .
<br/><br/><label>Dewey Class. No.: </label>540.0202  / N21.85