Letters page replies by Chris Claremont.
in X-Men : l'intégrale (Panini France, 2003 series) #1977-1978 (mars 2004)
in The Official Marvel Index to the X-Men (Marvel, 1987 series) #6 (May 1988)
in Classic X-Men (Marvel, 1986 series) #22 (June 1988)
in El Asombroso Hombre Araña Presenta (Novedades, 1988 series) #79 (Octubre 19 de 1989)
in Marvel Masterworks (Marvel, 1987 series) #24 ([September] 1993)
in Essential X-Men (Marvel, 1996 series) #1 (1996)
in Marvel Gold. La Imposible Patrulla-X (Panini España, 2011 series) #1 - Segunda Génesis (Abril 2011)
in Classic X-Men (Marvel, 1986 series) #22 (June 1988)
in El Asombroso Hombre Araña Presenta (Novedades, 1988 series) #79 (Octubre 19 de 1989)
in Marvel Masterworks (Marvel, 1987 series) #24 ([September] 1993)
in Essential X-Men (Marvel, 1996 series) #1 (1996)
in Marvel Special (Marvel Italia, 1994 series) #7 (Giugno 1996)
in Marvel Gold. La Imposible Patrulla-X (Panini España, 2011 series) #1 - Segunda Génesis (Abril 2011)
in X-Men Classic (Panini France, 2012 series) #1 (mars 2012)