TY  - RPRT
TI  - A survey of the equipment and procedures for the photometry of projectors at the National Bureau of Standards 
AU  - Chernoff, L
PY  - 1962
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 7410
DO  - 10.6028/NBS.RPT.7410
ER  -