Reference harvested from a Wikipedia citation while seeding Zodiex. Captured as a source stub; not yet reviewed.
- Title: Zodiac Unmasked: The Identity of America’s Most Elusive Serial Killer Revealed
- Publication / author / date: Penguin — Robert Graysmith — 2007-01-02
- URL: https://books.google.com/books?id=EdBQ9jvHU80C