TY  - GEN
AU  - Harry J Keegan
AU  - Gladys M Haas
AU  - Wiley A Hall
C2  - , National Institute of Standards and Technology, Gaithersburg, MD
DA  - 1957-01-01 05:01:00
DO  - https://doi.org/10.6028/NBS.RPT.4794
LA  - en
PB  - , National Institute of Standards and Technology, Gaithersburg, MD
PY  - 1957
TI  - Spectrophotometric and colorimetric study of color transparencies of some natural objects:
ER  -