SF Encyclopedia Picture Gallery
Robert Silverberg. Dimension Thirteen (New York: Ballantine Books, 1969) [coll: pb/Ron Walotsky]
Image courtesy of Clute Science Fiction Library at Telluride
Robert Silverberg. Dimension Thirteen (New York: Ballantine Books, 1969) [coll: pb/Ron Walotsky]
Image courtesy of Clute Science Fiction Library at Telluride