TY  - BOOK
AU  - Jacobson,Kurt I.
AU  - Jacobson,R.E.
TI  - Developing: the negative technique 
T2  - The Manual of photo-technique
SN  - 0240447700 :
PY  - 1972///
CY  - London, New York
PB  - Focal Press
KW  - Photography
KW  - Negatives
KW  - Developing and developers
ER  -