Authors: Swanson, Howard E. --- Carmel, Simon J. --- DeGroot, Johan H. --- Evans, Eloise H. --- McMurdie, Howard F. --- et al. Morris, Marlene C. --- Paretzkin, Boris. --- United States.
Year: 1971 Publisher: Gaithersburg, MD : U.S. Dept. of Commerce, National Institute of Standards and Technology,