| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Online 1: Cassette | 978-0-435-26018-7 | 1995 | Steven Gershon |
| Online 1: CD | 978-0-435-26016-3 | 1995 | " |
| Online 1 SB: Student's Book | 978-0-435-26008-8 | 1995 | Steve Gershon |
| Online 1: Teacher's Book | 978-0-435-26010-1 | 1995 | Steven Gershon |
| Online 1: Workbook | 978-0-435-26009-5 | 1995 | " |
| Online 2: Cassette | 978-0-435-26015-6 | 1996 | " |
| Online 2: CD | 978-0-435-26019-4 | 1996 | " |
| Online 2: Student's Book | 978-0-435-26012-5 | 1996 | " |
| Online 2: Teacher's Book | 978-0-435-26014-9 | 1996 | " |
| Online 2: Workbook | 978-0-435-26013-2 | 1996 | " |