Tracker
C. J. Cherryh
Foreigner (16)
Foundation's Edge
Isaac Asimov
Foundation (6)
Il talismano del potere
Licia Troisi
Cronache del Mondo Emerso (3)
Children of Kings
Marion Zimmer Bradley & Deborah J. Ross
Darkover (28)
Powers That Be
Anne McCaffrey & Elizabeth Ann Scarborough
Power Trlogy (1)