4 1 10 Cowan, Henry J. Additional Author Canter, David Additional Author mixed material 085334115X London APPLIED SCIENCE 1974 Ferguson, Phil M. Additional Author Cowan, Henry J. Additional Author mixed material 471051535 New York JWS 1981 Cowan, Henry J. Additional Author Wilson, Forrest Additional Author mixed material 442217137 New York VNR 1981 Cowan, Henry J. Additional Author Smith, Peter R. Additional Author mixed material 44221488 New York VAN NOSTRAND REINHOLD COMPANY 1983