Term Secretary General Term Assistant Secretary
1967-1971 Gavin Arneil 1967-1971 Harmen Tiddens
1971-1974 Harmen Tiddens 1971-1976 Andreas Fanconi
1974-1979 Oskar Oetliker 1976-1979 Karel van Acker
1979-1984 Karel van Acker 1979-1984 Ernst Leumann
1984-1989 Ernst Leumann 1984-1985 Karel van Acker
&nbs