Dartnall H. J. A. <br/><br/>
Visual pigments   

 - 
 - London  Methuen  1957 
 - 216 p.  22 cm. 
 -   .
<br/><br/>  
<br/><br/>  Retinal Pigments 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Retinal Pigments
<br/><br/><label>Dewey Class. No.: </label>WW103  / DAR