APA-viite

Sagan, C. (1974). Broca's brain: Reflections on the romance of science. Ballantine.

Chicago-tyylinen lähdeviittaus

Sagan, Carl. Broca's Brain: Reflections on the Romance of Science. New York: Ballantine, 1974.

MLA-viite

Sagan, Carl. Broca's Brain: Reflections on the Romance of Science. Ballantine, 1974.