| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Gateway to Science: Classroom Set | 978-1-285-46678-1 | 2013 | Tim Collins |
| Gateway to Science: Student Book, Hardcover: Vocabulary and Concepts | 978-1-4240-0331-0 | 2007 | " |
| Time Zones 1: MultiROM | 978-1-4240-6114-3 | 2009 | " |
| Time Zones 1: Split A MultiROM | 978-1-4240-6416-8 | 2009 | " |
| Time Zones 1: Split B MultiROM | 978-1-4240-6417-5 | 2009 | " |
| Time Zones 1 with Online Workbook | 978-1-305-50924-5 | 2015 | Tim Collins · Ian Purdon |
| TIME ZONES STUDENT BOOK 1 | 978-0-357-41891-8 | 2020 | Tim Collins · Ian Purdon |