AO
Nueva York: Harper & Row, 1970.
Madrid: Siglo XXI, 1978.
Londres: Grant Richards, 1920.
Madrid: Alianza, 1970.
Londres: Bookmarks, 1988.
Londres: Hodder and Stoughton, 1932.
Buenos Aires: La Protesta, 1923.
Lanham: Rowman & Littlefield, 2014.
Malden, Mass./Oxford: Blackwell Publishing, 2006.
Barcelona: Crítica, 2002.