| 1 |  | Commercially speaking : Teachers book / Mark Irvine; Marion Cadman . - Oxford : Oxford, 1999. - 96tr ; 27cm Thông tin xếp giá: 200017030 |
| 2 |  | Commercially speaking : Work book / Mark Irvine . - Oxford : Oxford, 1999. - 80tr. ; 27cm Thông tin xếp giá: 200017016 |
| 3 |  | Commercially speaking : Students book / Mark Irvine . - Oxford : Oxford, 1999. - 127tr ; 27cm Thông tin xếp giá: 200017017 |