TY  - BOOK
AU  - Worlken,Jerome J.
TI  - Photo processes photoreceptors and evolution
SN  - 0-12-762050-8
AV  - QH15.W64 
PY  - 1975///
CY  - New York
PB  - : Academy Press
KW  - photoreceptors
N1  - Includes bibliographical reference and index
ER  -