TY  - BOOK
AU  - Seliger, Howard H.
AU  -  McElroy, William D.
TI  - Light: physical and biological action
U1  - 581.191 
PY  - 1965///
CY  - New York
PB  - Academic Press
KW  - Lights
KW  -  McElroy, William D
N1  - Includes index
ER  -