APA (7th ed.) Citation

Hawking, S. (2018). Brief answers to the big questions (First U.S. edition.). Bantam Books.

Chicago Style (17th ed.) Citation

Hawking, Stephen. Brief Answers to the Big Questions. First U.S. edition. New York: Bantam Books, 2018.

MLA (9th ed.) Citation

Hawking, Stephen. Brief Answers to the Big Questions. First U.S. edition. Bantam Books, 2018.