by League of Nations. Assembly

1920

by League of Nations

1929

by Health Organisation, League of Nations

1926

by League of Nations. Health Committee

1921

by League of Nations. Assembly

1922

by League of Nations

1927

by League of Nations

1926

by League of Nations. Assembly

1924

by League of Nations

1923

by League of Nations

1929

by League of Nations. Secretariat. Information Section

1928 · Geneva : League of Nations

by League of Nations. Child Welfare Committee. Session

1926