TY  - BOOK
AU  - Richardson I. D.
TI  - Some reactions of pelagic fish to light as recorded by echo--sounding
T2  - Fishery investigations, series 2 . V .18 . No.  1
U1  - MK332:C5, J2  under size 
PY  - 1952///
KW  - INDUSTRIAL ARTS
ER  -