Singular, S., & Sklar, A. (2006). Unholy messenger: The life and crimes of the btk serial killer (Unabridged.). Tantor Media.
Cita Chicago Style (17a ed.)Singular, Stephen, y Alan Sklar. Unholy Messenger: The Life and Crimes of the Btk Serial Killer. Unabridged. Old Saybrook: Tantor Media, 2006.
Cita MLA (8a ed.)Singular, Stephen, y Alan Sklar. Unholy Messenger: The Life and Crimes of the Btk Serial Killer. Unabridged. Tantor Media, 2006.
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