TY - GEN AU - Hsia, Jack J AU - Jr, William H Venable C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1974-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.594-9 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1974 TI - Optical radiation measurements ::describing spectrophotometric measurements ER -