TY - GEN AU - P Barnes AU - Albert Parr AU - E Early C2 - Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD DA - 1998-03-01 DO - https://doi.org/10.6028/NIST.SP.250-48 LA - en PB - Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD PY - 1998 TI - Spectral Reflectance ER -