APA (7th ed.) Zitazioa
Hyatt-Williams, A., & Williams, P. (1998). Cruelty, violence and murder: Understanding the criminal mind. Karnac Books.
Chicago Style (17th ed.) Zitazioa
Hyatt-Williams, Arthur, eta Paul Williams. Cruelty, Violence and Murder: Understanding the Criminal Mind. London: Karnac Books, 1998.
MLA (9th ed.) Zitazioa
Hyatt-Williams, Arthur, eta Paul Williams. Cruelty, Violence and Murder: Understanding the Criminal Mind. Karnac Books, 1998.
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