By Piedmont, Ralph L.
By Keeney, Ralph L., Raiffa, Howard
By Kliem, Ralph L., Ludin, Irwin S.
By Finn, Ralph L.
By Merrill, John C., Lowenstein, Ralph L.
By Hammond, John S., Keeney, Ralph L., Raiffa, Howard
By Kliem, Ralph L., Ludin, Irwin S., Ludwin
By Woods, Ralph L.