TY  - RPRT
TI  - Collaborative reference program for color and appearance : color and color difference
AU  - Horlick, J
AU  - Cummings, T L
PY  - 1979
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 79-1379
DO  - 10.6028/NBS.IR.79-1379
ER  -