in Fantastic! (IPC, 1967 series) #6 (25 March 1967)
in Marvel Super-Heroes (Marvel, 1967 series) #23 (November 1969) [partial; top panel]
in Amazing Adventures (Marvel, 1979 series) #7 (June 1980)
in The Official Marvel Index to the X-Men (Marvel, 1987 series) #1 (May 1987)
in Marvel Masterworks (Marvel, 1987 series) #3 ([November] 1987)
in Uncanny X-Men Masterworks (Marvel, 1993 series) #1 (February 1993)
in Marvel Masterworks: The X-Men (Marvel, 1998 series) #[1] (December 1998)
in Essential Uncanny X-Men (Marvel, 1999 series) #1 (September 1999)
in X-Men No. 4 [Marvel Legends Reprint] (Marvel, 2002 series) #[nn] (2002) [cover]
in Marvel Masterworks: The X-Men (Marvel, 2002 series) #1 (April 2002)
in Marvel Masterworks: The X-Men (Marvel, 2003 series) #1 [Regular Edition] ([May] 2003)
in Custom: Deal - Fox Home Entertainment (X-3 Stan Lee Comic) (Marvel, 2006 series) #1 (September 2006)
in The X-Men Omnibus (Marvel, 2009 series) #1 ([April] 2009)Disputed inker credit--George Roussos per Carl Gafford and Nick Caputo; Paul Reinman from The Marvel Comics Index (Olshevsky 1981) and The Official Marvel Index to the X-Men (Olshevsky 1987), with this site’s original indexer concurring.
Sources for letters credit are The Marvel Comics Index and The Official Marvel Index to the X-Men.
in Fantastic! (IPC, 1967 series) #5 (18 March 1967), #6 (25 March 1967)
in Marvel Super-Heroes (Marvel, 1967 series) #23 (November 1969)
in Amazing Adventures (Marvel, 1979 series) #7 (June 1980) [pp. 1-12], #8 (July 1980)
in Marvel Masterworks (Marvel, 1987 series) #3 ([November] 1987)
in Uncanny X-Men Masterworks (Marvel, 1993 series) #1 (February 1993)
in X-Men: The Early Years (Marvel, 1994 series) #4 (August 1994)
in Marvel Special (Marvel Italia, 1994 series) #3 (Aprile 1995)
in Marvel Masterworks: The X-Men (Marvel, 1998 series) #[1] (December 1998)
in Essential Uncanny X-Men (Marvel, 1999 series) #1 (September 1999)
in X-Men No. 4 [Marvel Legends Reprint] (Marvel, 2002 series) #[nn] (2002)
in Marvel Masterworks: The X-Men (Marvel, 2002 series) #1 (April 2002)
in Marvel Masterworks: The X-Men (Marvel, 2003 series) #1 [Regular Edition] ([May] 2003)
in Custom: Deal - Fox Home Entertainment (X-3 Stan Lee Comic) (Marvel, 2006 series) #1 (September 2006)
in The X-Men Omnibus (Marvel, 2009 series) #1 ([April] 2009)