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