in Fantastic and Terrific (IPC, 1968 series) #69 (8 June 1968) [cover]
in The X-Men (Marvel, 1963 series) #84 (October 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)George Roussos credited per Nick Caputo. Original indexer credited Frank Giacoia.
in The X-Men (Marvel, 1963 series) #84 (October 1973)
in Marvel Special (Marvel Italia, 1994 series) #14 (Luglio 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)