Cita APA (7a ed.)

Graysmith, R. (2002). Zodiac unmasked: The identity of America's most elusive serial killer revealed. Berkley Books.

Cita Chicago Style (17a ed.)

Graysmith, Robert. Zodiac Unmasked: The Identity of America's Most Elusive Serial Killer Revealed. New York: Berkley Books, 2002.

Cita MLA (8a ed.)

Graysmith, Robert. Zodiac Unmasked: The Identity of America's Most Elusive Serial Killer Revealed. Berkley Books, 2002.