| Titel | ISBN-13 (ISBN-10)  | Erscheinungsjahr | 
|---|---|---|
| Towards an Ethical-ecological Assessment of Companies in Nigeria: An Empirical Inquiry into the Relevance or Otherwise of the Frankfurt-Hohenheim ... / Série 5: Sciences économiques, Band 3384) | 978-3-631-61696-3 (3-631-61696-1)  | 2012 |