Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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