| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Passages Class Audio CDs 2: An Upper-level Multi-skills Course | 978-0-521-56463-2 (0-521-56463-8) | 2000 | Jack C. Richards |
| Passages Student's Book 1: An Upper-level Multi-skills Course | 978-0-521-56472-4 (0-521-56472-7) | 1998 | " |
Charles A. (Sandy) Cotton · Charles S. · Charles Schmidt · Charles Sennott · Charles Senot · Charles Smith · Charles Smoot