G D · Gail Dwyer · Gill Dyer
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Dolphins: Their Natural History, Behavior and Unique Relationship with Human Beings | 978-965-494-185-3 (965-494-185-6) | 2004 |
| Marco Polo: Journeys and Thoughts of a 13th Century Traveler | 978-965-494-184-6 (965-494-184-8) | 2005 |