Invaders from Earth. / Across Time.
New York: Ace Books, Inc., 1958. First Edition. Paperback. Ace Double D-286. A fine copy. Cover art by Ed Emshwiller.; Small Octavo. More
New York: Ace Books, Inc., 1958. First Edition. Paperback. Ace Double D-286. A fine copy. Cover art by Ed Emshwiller.; Small Octavo. More