- Script
- Roy Thomas (credited)
- Pencils
- Werner Roth (credited)
- Inks
- John Tartaglione (see notes)
- Colors
- ?
- Letters
- Artie Simek (credited) (pages 1-7); Sam Rosen (sourced) (uncredited, pages 8-20)
- First Line of Dialogue or Text
- New Yorkers are well-accustomed to clamorous sounds...
- Genre
- superhero
- Characters
- Factor Three: Banshee [Sean Cassidy] (introduction); Ogre [Brian Dunlap] (introduction)
X-Men: Angel [Warren Worthington III]; Beast [Hank McCoy]; Cyclops [Scott Summers]; Iceman [Bobby Drake]; Marvel Girl [Jean Grey]; Mimic [Calvin Rankin]; Professor X [Charles Xavier]
Ted Roberts; Factor Three (introduction); Mr. Jones; Mrs. Von Brahmin
- Universe
- Marvel : mainstream
- Reprints
- in ComicOrama Jumbo des Super-Heros (Editions Héritage, 1985 series) #282
- in HIP Comics (Classics/Williams, 1966 series) #1947 (1968)
- in Fantastic! (IPC, 1967 series) #52 (10 February 1968) [Black and white, pages 1-8 only.], #53 (17 February 1968), #54 (24 February 1968)
- in Hit Comics (BSV - Williams, 1966 series) #47
- in Strange (Editions Lug, 1970 series) #28 (5 avril 1972)
- in The X-Men (Marvel, 1963 series) #76 (June 1972)
which is reprinted- in Spidey (Editions Lug, 1979 series) #44 (10 septembre 1983)
- in X-Men #28 [JC Penney Marvel Vintage Pack] (Marvel, 1994 series) ([1994])
- in Marvel Milestone Edition: X-Men #28 (Marvel, 1994 series) (November 1994)
- in Marvel Special (Marvel Italia, 1994 series) #12 (Novembre 1997)
- in Marvel Masterworks: The X-Men (Marvel, 1998 series) #[3] (January 2002)
- in Essential Classic X-Men (Marvel, 2006 series) #2 (2006) [black and white]
- in The X-Men Omnibus (Marvel, 2009 series) #1 ([April] 2009)
- in Marvel Masterworks: The X-Men (Marvel, 2009 series) #3 (2011)
- in X-Men Epic Collection (Marvel, 2014 series) #2 - Lonely Are the Hunted (2016)
Tartaglione inks per Nick Caputo, who notes the correcting credit was used when reprinted in # 76. Lettering credits provided by Rodrigo Baeza.
- Script
- Roy Thomas
- Pencils
- ? (illustrations)
- Inks
- ? (illustrations)
- Colors
- ?
- Letters
- typeset
- Characters
- Beast; Iceman; Cyclops
- Reprints
Letters from: Shirley Gorman, Dennis Clark, Mark Campbell, Jack Mayberry, Vincent Klemm, Rob Liberman, Barry Smith (not the artist), and Jerelyn Ryan; M.M.M.S. membership form.