Biochemistry and physiology of visual pigments: symposium held at Inst. f. Tierphysiologie Ruhr-Univ :  Bochum, W. Germany, August 27-30, 1972 / 
for the organizing committee edited by Helmut Langer. 
 - Berlin ; New York :  Berlin ; New York :  Springer,  1973. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0387062041 (New York)  DM31.80 
<br/><br/><label>LCCN: </label>73076922 
<br/><br/><label>Nat. Bib. No.: </label>GFR73-A 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Visual pigments -- Congresses.--Visual pigments -- Congresses.<br/>Photoreceptors -- Congresses.--Photoreceptors -- Congresses.
<br/><br/><label>LC Class. No.: </label>QP671.V5  / S86 1972 
<br/><br/><label>Dewey Class. No.: </label>591.1/88