Author, Writer · 27 titles
A Terra Encantada de GayaFilm· 2004Writer
The Palace of EternityBook· 1969Author
Other Days, Other EyesBook· 1972Author
A Wreath of StarsBook· 1976Author
Who Goes Here?Book· 1977Author
Killer PlanetBook· 1989Author
The Ceres SolutionBook· 1981Author
The Wooden SpaceshipsBook· 1987Author