Columbia subject headings:
World War, 1914-1918--Peace.
World War, 1914-1918--Territorial questions--Bulgaria.
Harvard subject headings:
World War, 1914-1918--Peace
World War, 1914-1918--Territorial questions--Bulgaria.
Princeton subject headings:
World War, 1914-1918--Peace.
World War, 1914-1918--Territorial questions--Bulgaria.