| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Mysli przewodnie | 978-83-61O4O-37-8 (83-61O4O-37-4) | 2008 |
D. P. · Drucker Peter F. · Drucker Peter F Hammond John S Etzioni Amitai · Drucker Peter F., Hesselbein Frances Collins Jim · Drucker Peter F Wartzman Rick · Peter Drucker