Geheimnisse des 20. Jahrhunderts
| Book | Modern Mysteries of the World |
| Format | Hardback |
| Language | German |
| First Printing | 1990 |
| Author | Janet Bord, Colin Bord |
| Copyright Holder | Janet Bord, Colin Bord |
| Copyright Holder (This Edition) | Hestia Verlag GmbH, Bayreuth |
| Translated by | Klaus Kamberger |
| Cover/Jacket Design by | Graupner & Partner, München |
| Typeset by | MPM, Wasserburg |
| Printed and Bound by | Wiener Verlag |
| Format | Hardback |
| Language | German |
| Location | Germany |
| First Printing | 1990 |
| First Printing in Country | 1989 |
| Pages / Font | 509 pages |
| ISBN 10 | 3-7770-0418-9 |
| Notes | First printing Dust cover, blue book with white lettering. |