Hawking, S. W. (1988). A brief history of time. Bantam Books.
Cita Chicago Style (17a ed.)Hawking, S. W. A Brief History of Time. New York: Bantam Books, 1988.
Cita MLA (8a ed.)Hawking, S. W. A Brief History of Time. Bantam Books, 1988.
Precaución: Estas citas no son 100% exactas.