Vera Walterscheid ยท Walter Vieira
| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Menedzer sprzedazy na miare XXI wieku | Paperback | 978-83-264-3110-4 (83-264-3110-9) | 2013 |
| Menedzer sprzedazy na miare XXI wieku | Taschenbuch | 978-83-7526-721-1 (83-7526-721-X) | 2010 |