Romita ink credit by Nick Caputo. Sal Buscema is incorrectly credited with pencils in The Official Marvel Index to the X-Men (1987), The Official Marvel Index to the X-Men (1994), and Official Index to the Marvel Universe.
Sources for Cooper lettering credit are The Official Marvel Index to the X-Men (Olshevsky 1987), The Official Marvel Index to the X-Men (Ward 1994), and Official Index to the Marvel Universe (Vandal et al. 2009). Rosen credits per Nick Caputo, June 2012.
Sources for particularization of Heck pencils credit are The Official Marvel Index to the X-Men (Olshevsky 1987), The Official Marvel Index to the X-Men (Ward 1994), and Official Index to the Marvel Universe (Vandal et al. 2009).
Includes a letter from Tony Isabella.