Harm, Walter <br/><br/>
Biological effects cyultraviolet reaction 

 - New York   C.U.P.  1980 
 - 216 
<br/><br/> 17756 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology
<br/><br/><label>Dewey Class. No.: </label>571.456  / HAR