Isaac Asimov's Science Fiction Magazine, Volume 5, Issue 4, April 13, 1981 by George H. Scithers, Roger Zelazny, Peggy J. Noonan, Barbara S. Ryden, F. Gwynplaine MacIntyre, Isaac Asimov, Baird Searles, Erwin S. Strauss, James E. Gunn, Stefan T. Possony, Jerry Pournelle, Barry B. Longyear, Martin Gardner, Rick Raphael, J.O. Jeppson, Janet Asimov, Gary Alexander, Ted Reynolds, Sharon Webb