APA-referens (7:e uppl.)

Hawking, S. (2018). Brief answers to the big questions. John Murray.

Chicago-referens (17:e uppl.)

Hawking, Stephen. Brief Answers to the Big Questions. London: John Murray, 2018.

MLA-referens (9:e uppl.)

Hawking, Stephen. Brief Answers to the Big Questions. John Murray, 2018.