in The X-Men (Marvel, 1963 series) #80 (February 1973)
in The Official Marvel Index to the X-Men (Marvel, 1987 series) #2 (July 1987)
in Marvel Masterworks: The X-Men (Marvel, 2003 series) #4 ([October] 2004)
in The X-Men Omnibus (Marvel, 2009 series) #2 ([April] 2011)Disputed penciler credit--Werner Roth per Steve Whitaker, Nick Caputo, Bob Ford, Carl Gafford, Michael Evans, and the original indexer; Jack Kirby per Rich Donnelly. Disputed inker credit--John Tartaglione by Steve Whitaker, Nick Caputo, Bob Ford, Rich Donnelly, and the original indexer; John Verpoorten per Carl Gafford and Michael Evans. The X-Men volume of The Official Index To The Marvel Universe credits Kirby with layouts, Roth with finished pencils and Tartaglione with inks.
Sources for letters credit are The Marvel Comics Index (Olshevsky 1981, 28), The Official Marvel Index to the X-Men (Olshevsky 1987, 18), The Official Marvel Index to the X-Men (Ward 1994, 16), and Official Index to the Marvel Universe (Vandal et al. 2009).
in Fantastic and Terrific (IPC, 1968 series) #61 (13 April 1968) [part 1], #62 (20 April 1968) [part 1]
in The X-Men (Marvel, 1963 series) #80 (February 1973)
in Marvel Special (Marvel Italia, 1994 series) #13 (Aprile 1998) [page count uncertain]
in Marvel Masterworks: The X-Men (Marvel, 2003 series) #4 ([October] 2004)
in The X-Men Omnibus (Marvel, 2009 series) #2 ([April] 2011)
in The X-Men Omnibus (Marvel, 2009 series) #2 ([April] 2011)Letters Of Comment from Eamonn Keenan, John Shellhorn, Dean Tsurumoto, Stanley Kremski, Karl Hammer and Gary Bullock.
Includes ad for The Merry Marvel Marching Society, Next Issue box and a panel of art reproduced from X-Men #29.