Columbia subject headings:
Hungary--Boundaries--Slovakia.
Slovakia--Boundaries--Hungary.
Slovakia--History--1918-1945.
Treaty of Trianon
World War, 1914-1918--Territorial questions--Hungary.
World War, 1914-1918--Territorial questions--Slovakia.
Harvard subject headings:
Allied and Associated Powers (1914-1920). Treaties, etc. 1920 June 4.
Hungary--Boundaries--Slovakia.
Slovakia--Boundaries--Hungary.
Slovakia--History--1918-1945.
World War, 1914-1918--Territorial questions--Hungary
World War, 1914-1918--Territorial questions--Slovakia.
Princeton subject headings: