P. C. · P. Calvert · Patricia C.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Ancient Celts | 978-0-531-16845-5 (0-531-16845-X) | 2005 |
| The Ancient Inca | 978-0-531-16740-3 (0-531-16740-2) | 2005 |
| The Communicator's Handbook: Tools, Techniques and Technology | 978-0-929895-32-1 (0-929895-32-0) | 2000 |