Lua APA (7ú heag.)
Spier, F. (2015). Big history and the future of humanity (Second edition.). Wiley Blackwell.
Lua i Stíl Chicago (17ú heag.)
Spier, Fred. Big History and the Future of Humanity. Second edition. Chichester, [England]: Wiley Blackwell, 2015.
Lua MLA (9ú heag.)
Spier, Fred. Big History and the Future of Humanity. Second edition. Wiley Blackwell, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.