Symington, N. (2002). A pattern of madness. Karnac.
Lua i Stíl Chicago (17ú heag.)Symington, Neville. A Pattern of Madness. London: Karnac, 2002.
Lua MLA (9ú heag.)Symington, Neville. A Pattern of Madness. Karnac, 2002.
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