Vanguard From Alpha // The Changeling Worlds
New York: Ace Books, 1959. 109, [2], 145 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. Two pages of publisher's advertisements follow Vanguard From Alpha. Ace D-369..... More