Não informado. (1957). Marxism Today. Communist Party of Great Britain.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Marxism Today. London: Communist Party of Great Britain, 1957.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Marxism Today. Communist Party of Great Britain, 1957.
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