George H. Scithers, John Varley, Martin Gardner, Kevin O'Donnell, Jr, F. M. Busby, Sally A. Sellers, Randall Garrett, Isaac Asimov, Jack C. Haldeman, Herb Boehm, Robert Lee Hawkins, Steven Utley, William Jon Watkins, Garry R. Osgood · First published 1977
