Gramsci, A., & Lawner, L. (1979). Letters from prison. London: Quartet Books.
Lua i Stíl Chicago (17ú heag.)Gramsci, Antonio, agus Lynne Lawner. Letters from Prison. London: Quartet Books, 1979.
Lua MLA (8ú heag.)Gramsci, Antonio, agus Lynne Lawner. Letters from Prison. London: Quartet Books, 1979.
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