Lagerkvist, P. (1958). The Si by. Chatto & Windus.
Lua i Stíl Chicago (17ú heag.)Lagerkvist, Par. The Si by. London: Chatto & Windus, 1958.
Lua MLA (9ú heag.)Lagerkvist, Par. The Si by. Chatto & Windus, 1958.
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