Alexander, I. W. (1957). Bergson: Philosopher of reflection. Bowes & Bowes.
Lua i Stíl Chicago (17ú heag.)Alexander, Ian W. Bergson: Philosopher of Reflection. London: Bowes & Bowes, 1957.
Lua MLA (9ú heag.)Alexander, Ian W. Bergson: Philosopher of Reflection. Bowes & Bowes, 1957.
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