The Astronauts Must Not Land [and] The Space-Time Juggler
New York: Ace Books, 1963. 138, [1], 84, [1] p.; 16 cm. Paperback printed in dos-a-dos style, containing two science fiction novels, each with its own front cover illustration and pagination, the pages starting at opposite ends of the book. One page of publisher's advertisements follows each work. Ace F-227..... More