Robert P. Mills with Frederik Pohl (Contributor), Charles G. Finney (Contributor), Kurt Vonnegut (Contributor), Evelyn E. Smith (Contributor), Rosel George Brown (Contributor), C.M. Kornbluth (Contributor), L. Davison (Contributor), Gordon R. Dickson (Contributor), Isaac Asimov (Contributor), George Langelaan (Contributor), Reginald Bretnor (Contributor)

Robert P. Mills with John Anthony West (Contributor), Will Stanton (Contributor), Brian W. Aldiss (Contributor), Claude Veillot (Contributor), Herbert Gold (Contributor), Anne Walker (Contributor), Grendel Briarton (Contributor), Hal Draper (Contributor)

Robert P. Mills with Kate Wilhelm (Contributor), Maria Russell (Contributor), Poul Anderson (Contributor), Reginald Bretnor (Contributor), Jay Williams (Contributor), Ron Goulart (Contributor), James White (Contributor), Nils T. Peterson (Contributor)

Robert P. Mills with Ward Moore (Contributor), Matthews Grass (Contributor), Josef Nesvadba (Contributor), Avram Davidson (Contributor), Reginald Bretnor (Contributor), Edgar Pangborn (Contributor), J.G. Ballard (Contributor), J. T. McIntosh (Contributor), Barry Stevens (Contributor), Richard Matheson (Contributor)

Robert P. Mills with Manly Wade Wellman (Contributor), Fritz Leiber (Contributor), Reginald Bretnor (Contributor), Zenna Henderson (Contributor), Robert F. Young (Contributor), Avram Davidson (Contributor), Edgar Pangborn (Contributor)

Avram Davidson with James Blish (Contributor), Josef Nesvadba (Contributor), Otis Kidwell Burger (Contributor), William F. Nolan (Contributor), Terry Carr (Contributor), William Bankier (Contributor), Reginald Bretnor (Contributor), Avram Davidson (Contributor), Vance Aandahl (Contributor), Ron Goulart (Contributor), Gordon R. Dickson (Contributor), Eric Frazer (Contributor)

Avram Davidson with Miriam Allen Deford (Contributor), Will Stanton (Contributor), Frederick Bland (Contributor), Djinn Faine (Contributor), Josef Nesvadba (Contributor), Kris Neville (Contributor), Reginald Bretnor (Contributor), John Brunner (Contributor), Ethan Ayer (Contributor), Charles Foster (Contributor)

Avram Davidson with Reginald Bretnor (Contributor), Truman Capote (Contributor), Ron Goulart (Contributor), Zenna Henderson (Contributor), Joanna Russ (Contributor), Vance Aandahl (Contributor), Sasha Gilien (Contributor), Terry Carr (Contributor), Kate Wilhelm (Contributor)

Avram Davidson with Randall Garrett (Contributor), Dean McLaughlin (Contributor), Reginald Bretnor (Contributor), H. L. Gold (Contributor), J. T. McIntosh (Contributor), Gordon R. Dickson (Contributor), Fritz Leiber (Contributor), Will Stanton (Contributor), George Sumner Albee (Contributor), Kendell F. Crossen (Contributor), Fred Benton (Contributor), Rosel George Brown (Contributor), Harlan Ellison (Contributor)

Avram Davidson with Evelyn E. Smith (Contributor), Suzanne Malaval (Contributor), Gary Jennings (Contributor), Grendel Briarton (Contributor), James H. Schmitz (Contributor), Theodore Sturgeon (Contributor), Kit Reed (Contributor)