Sagan, C. (1979). Broca's brain: Reflections on the romance of science. Random House.
Lua i Stíl Chicago (17ú heag.)Sagan, Carl. Broca's Brain: Reflections on the Romance of Science. New York: Random House, 1979.
Lua MLA (9ú heag.)Sagan, Carl. Broca's Brain: Reflections on the Romance of Science. Random House, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.