Sagan, C. (1975). Broca's brain: Reflections on the romance of science. Random House, Ballantine Books.
Chicago-referens (17:e uppl.)Sagan, Carl. Broca's Brain: Reflections on the Romance of Science. New York: Random House, Ballantine Books, 1975.
MLA-referens (8:e uppl.)Sagan, Carl. Broca's Brain: Reflections on the Romance of Science. Random House, Ballantine Books, 1975.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.