V. Hagen · Victor W. von Hagen · Wolfgang Hagen
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Golden Man: Quest for El Dorado | 978-0-347-00006-2 (0-347-00006-1) | 1974 |
| Maya explorer: John Lloyd Stephens and the lost cities of Central America and the Yucatan | 978-0-08-771703-9 (0-08-771703-4) | 1990 |