TY  - RPRT
TI  - Optical radiation measurements : describing spectrophotometric measurements
AU  - Hsia, Jack J
AU  - Venable Jr, William H
PY  - 1974
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 594-9
DO  - 10.6028/NBS.TN.594-9
ER  -