Pocket Books, 1974, paperback. Reprints the 1973 Simon & Schuster first edition. Introduction by the editor and three original novellas: The Feast of St. Dionysus by Robert Silverberg; Kjwalll'kje'k'koothaïlll'kje'k [Nemo] by Roger Zelazny; My Brother Leopold [Tales of a Darkening World] by Edgar Pangborn.
Click on any of the links above to see more books like this one.