| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Time's Pendulum: From Sundials to Atomic Clocks, the Fascinating History of Timekeeping and How Our Discoveries Changed the World | 978-0-15-600649-1 (0-15-600649-9) | 1999 |
| Time's Pendulum: The Quest to Capture Time--From Sundials to Atomic Clocks | 978-0-306-45787-6 (0-306-45787-3) | 1998 |