Clifton-Taylor, A. (1975). Spirit of the age. British Broadcasting Corporation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रClifton-Taylor, Alec. Spirit of the Age. London: British Broadcasting Corporation, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रClifton-Taylor, Alec. Spirit of the Age. British Broadcasting Corporation, 1975.
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