G. C. · George Condon · George Contini · Gregg Condon
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| 101 Lessons: Vocabulary Words in Context | 978-1-4206-8142-0 (1-4206-8142-7) | 2007 |
| The World Almanac for Kids: Scavenger Hunts | 978-1-4206-3853-0 (1-4206-3853-X) | 2005 |