APA-referens (7:e uppl.)

Hawking, S. (1988). A brief history of time. Bantam.

Chicago-referens (17:e uppl.)

Hawking, Stephen. A Brief History of Time. New York: Bantam, 1988.

MLA-referens (9:e uppl.)

Hawking, Stephen. A Brief History of Time. Bantam, 1988.