Columbia subject headings:
Harvard subject headings:
Agriculture--International cooperation--Societies, etc.--History.
Food and Agriculture Organization of the United Nations--History.
International Institute of Agriculture--History.
League of Nations--History.
Princeton subject headings:
Agriculture and state--Italy--History--20th century.
Agriculture--International cooperation--Societies, etc.--History--20th century.
Food and Agriculture Organization of the United Nations--History.
International Institute of Agriculture--History.
Italy--Foreign economic relations.
League of Nations--History.