TY  - BOOK
AU  - Ive, G. A. G.
TI  - The photo-electric cell and its application to safety
PY  - 1950///
CY  - Radiovisor Parent
PB  - London
KW  - Photoelectric cell
UR  - http://14.139.222.13:80/cgi-bin/koha/opac-detail.pl?biblionumber=956
ER  -