Selling the invisible:a field guide to modern marketing
| No. Panggil | 658.8 Bec |
| Pengarang | Beckwith, Harry; |
| Tempat Terbit | New York |
| Penerbit | Warner Books |
| Tahun Terbit | 1997 |
| Subject | Service industries; Industri; |
| Klasifikasi | 658.8 |
| Abstrak/Catatan | Harry Beckwith. |