Lua APA (7ú heag.)
Bradley, J. (2008). Cadbury's purple reign: The story behind chocolate's best-loved brand. John Wiley.
Lua i Stíl Chicago (17ú heag.)
Bradley, John. Cadbury's Purple Reign: The Story Behind Chocolate's Best-loved Brand. Chichester, England ; Hoboken, NJ: John Wiley, 2008.
Lua MLA (9ú heag.)
Bradley, John. Cadbury's Purple Reign: The Story Behind Chocolate's Best-loved Brand. John Wiley, 2008.
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