SF Encyclopedia Picture Gallery
Robert Silverberg. The Cube Root of Uncertainty (New York: Macmillan, 1970) [coll: hb/Anthony Sini]
Image courtesy of Clute Science Fiction Library at Telluride
Robert Silverberg. The Cube Root of Uncertainty (New York: Macmillan, 1970) [coll: hb/Anthony Sini]
Image courtesy of Clute Science Fiction Library at Telluride