Ciclo de fuego
Hal Clement
Coesistenza pacifica
Expedition zur Sonne
Foundation’s Friends
Ben Bova & Pamela Sargent & Robert Silverberg & Edward Wellen & Harry Turtledove & Connie Willis & Betsy Spiegelman Fein & Mike Resnick & Barry N. Malzberg & Sheila Finch & Frederik Pohl & Poul Anderson & George Zebrowski & Robert Sheckley & Edward D. Hoch & Hal Clement & Harry Harrison & Orson Scott Card
Mission of Gravity
Nati dall'abisso
Needle
Needle (1)
Ocean on Top
Star Light
Mesklin (2)
Strisciava sulla sabbia
Through the Eye of a Needle
Needle (2)
Unternehmen Schwerkraft