Lua APA (7ú heag.)

Sagan, C. (2013). Cosmos (Ballantine Books Trade Paperbacks, 2013.). Ballantine.

Lua i Stíl Chicago (17ú heag.)

Sagan, Carl. Cosmos. Ballantine Books Trade Paperbacks, 2013. New York: Ballantine, 2013.

Lua MLA (9ú heag.)

Sagan, Carl. Cosmos. Ballantine Books Trade Paperbacks, 2013. Ballantine, 2013.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.