Columbia subject headings:
Agriculture--Economic aspects--France.
Agriculture--Economic aspects.
Agriculture--France.
Food supply--France.
Food--France.
World War, 1914-1918--Economic aspects--France.
World War, 1914-1918--Food supply--France.
Harvard subject headings:
Agriculture--Economic aspects--France
Agriculture--France
Food supply--France
World War, 1914-1918--Economic aspects--France
World War, 1914-1918--Food supply--France.
Princeton subject headings:
Agriculture--Economic aspects--France.
Agriculture--France.
Food supply--France.
World War, 1914-1918--Economic aspects--France.
World War, 1914-1918--Food supply--France.