APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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