The Science Fiction Omnibus #1

H. Beam Piper, Fritz Leiber, Mack Reynolds, Keith Laumer, Milton Lesser, C. H. Liddell, Ron Cocking, Kenneth O'Hara, Frank Quattrocchi, Joe Archibald, Stephen Barr, Stanton Coblentz, Lester del Rey, C. M. Kornbluth, Evelyn E. Smith, Frederik Pohl, August Derleth, Algis Budrys, Murray Leinster, Frederic Brown