APA (7th ed.) Citation

Hawking, S. W., & Sagan, C. (1988). A brief history of time from the big bang to black holes. Bantam Press.

Chicago Style (17th ed.) Citation

Hawking, Stephen W., and Carl Sagan. A Brief History of Time from the Big Bang to Black Holes. Toronto: Bantam Press, 1988.

MLA (9th ed.) Citation

Hawking, Stephen W., and Carl Sagan. A Brief History of Time from the Big Bang to Black Holes. Bantam Press, 1988.