C. G. · Colin Gale · Colin Galloway · Colin Gill
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Trackers 0-5: Tracking Children's Progress Through the Early Years Foundation Stage | 978-1-898873-51-8 (1-898873-51-8) | 2007 |
| Trackers Plus: Tracking Children's Progress Through the Early Years Foundation Stage | 978-1-898873-64-8 (1-898873-64-X) | 2009 |