Clifton-Taylor, A. (1975). Spirit of the age. British Broadcasting Corporation.
Lua i Stíl Chicago (17ú heag.)Clifton-Taylor, Alec. Spirit of the Age. London: British Broadcasting Corporation, 1975.
Lua MLA (9ú heag.)Clifton-Taylor, Alec. Spirit of the Age. British Broadcasting Corporation, 1975.
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