Leokadia Oreziak ยท Orziak Leokadia
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Euro Nowy pieniadz | 978-83-01-13942-1 (83-01-13942-0) | 2004 |
| Finanse Unii Europejskiej | 978-83-01-15756-2 (83-01-15756-9) | 2009 |
| Finanse Unii Europejskiej | 978-83-01-14589-7 (83-01-14589-7) | 2005 |