Speedie, J. (1993). Wonderful sphinx: The biography of Ada Leverson. London: Virago.
Lua i Stíl Chicago (17ú heag.)Speedie, Julie. Wonderful Sphinx: The Biography of Ada Leverson. London: Virago, 1993.
Lua MLA (8ú heag.)Speedie, Julie. Wonderful Sphinx: The Biography of Ada Leverson. London: Virago, 1993.
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