TY  - BOOK
AU  - Southworth, J.
AU  - Bentley, T L J.
TI  - Photographic chemicals and chemistry
U1  - 661.808 
PY  - 1938///
CY  - London
PB  - Isaac Pitman and Sons
KW  - Photographic Chemistry
KW  - Photographic Processing
KW  - Silver Halide Photography
N1  - Includes index
ER  -