Lua APA (7ú heag.)

Hawking, S., & Mlodinow, L. (2008). A Brief History of Time. Bantam Press.

Lua i Stíl Chicago (17ú heag.)

Hawking, Stephen, agus Leonard Mlodinow. A Brief History of Time. London: Bantam Press, 2008.

Lua MLA (9ú heag.)

Hawking, Stephen, agus Leonard Mlodinow. A Brief History of Time. Bantam Press, 2008.

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