B.S. · B Sakamoto · Barbara S.
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Let's Go: 3: Skills Book with Audio CD Pack: Skills Book with CD Pack Level 3 | 978-0-19-439463-5 (0-19-439463-8) | 2007 | Elaine Cross · Ritsuko Nakata · Karen Frazier |
| Let's Go: 4: Skills Book with Audio CD Pack: Skills Book with Audio CD Pack Level 4 | 978-0-19-439464-2 (0-19-439464-6) | 2007 | Christine Hartzler · Ritsuko Nakata · Karen Frazier |