Executive Board Session [ke-15 : 1955 : Geneva]; World Health Organization. Executive Board. (1955). Executive Board Fifteenth Session, Geneva, 18 January - 4 February 1955. Geneva :: World Health Organization,.
Executive Board Session [ke-15 : 1955 : Geneva]; World Health Organization. Executive Board. Executive Board Fifteenth Session, Geneva, 18 January - 4 February 1955. Geneva :: World Health Organization,, 1955
Executive Board Session [ke-15 : 1955 : Geneva]; World Health Organization. Executive Board. Executive Board Fifteenth Session, Geneva, 18 January - 4 February 1955. Geneva :: World Health Organization,, 1955.