Sailing to Byzantium
Robert Silverberg
Roma Eterna
Roma Eterna (1)
Robert Silverberg Short Stories, Volume 2
A Robert Silverberg Omnibus
Revolt on Alpha C
Rescue Mission
Regan's Planet
Regan (1)
Recalled to Life
The Queen of Springtime
New Springtime (2)
Push No More
The Promised Land
Randall Garrett & Robert Silverberg
Nidorian (2.2)
Prime Commandment
Postmark Ganymede
The Positronic Man
Isaac Asimov & Robert Silverberg
The Positronic Robot Stories (1.5)
The Pope of the Chimps
Point of Focus
The Plot Against Earth
Planet of Death