Sidney Klein

The Magazine of Fantasy & Science Fiction #120

Robert P. Mills with Carol Emshwiller (Contributor), Avram Davidson (Contributor), Sidney Klein (Contributor), Reginald Bretnor (Contributor), Jay Williams (Contributor), Reginald Bretnor (Contributor), C. D. Heriot (Contributor), Stephen Barr (Contributor), G. C. Edmondson (Contributor), Henry Slesar (Contributor), Rick Rubin (Contributor)

Frederik Pohl, Alan E. Nourse, Edward MacKin, Groff Conklin, John Novotny, John Robinson Pierce, Robert Nathan, Stephen Barr, Sidney Klein, Reginald Bretnor, G.C. Edmondson, Winston K. Marks, Fritz Leiber, Isaac Asimov, R.A. Lafferty, Alan Arkin, Avram Davidson, Charles L. Harness, Gerard E. Neyroud, H.F. Ellis, Robert Lory