Las lanzas de Dios

La clave del laberinto

The Labyrinth Key

Human in the Circuit: Collected Stories / Perception of Death

Standing Wave: A Science Fiction Novel

Lightpaths: A Science Fiction Novel

Empty Cities of the Full Moon

Visions of Mars: Essays on the Red Planet in Fiction and Science

Science Fiction and the Dismal Science: Essays on Economics in and of the Genre

Bridges to Science Fiction and Fantasy: Outstanding Essays from the J. Lloyd Eaton Conferences