TY  - BOOK
TI  - Biochemistry and physiology of visual pigments: symposium held at Inst. f. Tierphysiologie Ruhr-Univ
SN  - 0387062041
U1  - 573.8828 
PY  - 1973///
CY  - Berlin
PB  - Springer-Verlag
KW  - Visual pigments
ER  -