TY  - BOOK
AU  - Clark, W
AU  - Slater Price, T
AU  - Storr, B V
TI  - Seventh International Congress of Photography
U1  - 535.8 
PY  - 1929///
CY  - Cambridge
PB  - W  Heffer & Sons Limited
KW  - Photography
KW  - Physics
ER  -