TY - GEN AU - Kelly, Kenneth L C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1974-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.393 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1974 TI - Colorimetry and spectrophotometry ::a bibliography of NBS publications January 1906 through January 1973 ER -