- Series: Umweltverschmutzung Series Record # 43964
- Umweltverschmutzung
- 1 Stirbt unser blauer Planet? (1973) [ES] by Dirk Hess and William Voltz [only as by D. Heß and W. Voltz]
- 2
Müllplanet Erde (Die unsichtbare Sonne) (1973) [ES]
by
Dirk Hess
and
William Voltz
[only as by Dirk Heß?Dirk Hessand William Voltz]
- 3
Müllplanet Erde (Hinter der Antimateriewolke) (1973) [ES]
by
Dirk Hess
and
William Voltz
[only as by Dirk Heß?Dirk Hessand W. Voltz]
- 4
Arsen und Spitzenhäubchen?Arsen und Spitzenhaeubchen(1973) [ES] by Dirk Hess and William Voltz [only as byDirk Heß?Dirk Hessand William Voltz]