TY  - BOOK
AU  - Todd, Hollis N 
TI  - Photographic sensitometry: : A self-teaching text
SN  - 0-471-87649-6
PY  - 1976///
CY  - New York: 
PB  - A Wiley-Interscience Publication, 
KW  - Photometry
KW  - Sensitometry
ER  -