Churchill, W. S. (1964). The World Crisis 1911-1918 (3. Aufl.). Four Square Books.
Lua i Stíl Chicago (17ú heag.)Churchill, Winston S. The World Crisis 1911-1918. 3. Aufl. London: Four Square Books, 1964.
Lua MLA (8ú heag.)Churchill, Winston S. The World Crisis 1911-1918. 3. Aufl. Four Square Books, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.