| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Jak pomnozyc zrodla swoich dochodow | 978-83-264-399O-2 (83-264-399O-8) | 2011 |
A.G. · A. R. · A. Robert · Allen Ford, Robert Gardner, Richard Joseph, LeAnn Luna, Timothy Rupert, Charlene Henderson, Michael Schadewald Dale Bandy · Allen R. · Allen Robert · Robert G. · Robert G. Allen