Croft-Cooke, R. (1968). Three in a cell. Eyre & Spottiswoode.
Lua i Stíl Chicago (17ú heag.)Croft-Cooke, Rupert. Three in a Cell. London: Eyre & Spottiswoode, 1968.
Lua MLA (8ú heag.)Croft-Cooke, Rupert. Three in a Cell. Eyre & Spottiswoode, 1968.
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