 He was the deputy leader of the SDP Peers from 1986–87, and served as the chairman of the All-Party Parliamentary Group on Aids from 1987–96.His publications include "Sabbatical Year" (1958); "The Road from Ronda" (1969); "The Companion Guide to Madrid and Central Spain" (1974); "The Essence of Catalonia" (1988); "The Sierras of the South" (1992); "The Social Market and the State" (1999); and "Rosemary