ISBNs beginnend mit 978-3-929368-xx-xChristopher Worthley × Germany's Top 500A Handbook of Germany's Largest CorporationsChristopher WorthleyFrankfurter Allgemeine Zeitung 1994 Germany's Top 500An annual guidebook to Germany leading corporations, banks and insurance companies. 1999 EditionChristopher WorthleyFrankfurter Allgemeine Zeitung 1998
