John Romita pencil credits from Rich Donnelly, via the GCD Errors List.
Sources for particularization of pencils credits 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 Bob Wiacek
Total No. Copies Printed (net press run): Average no. copies each issue during preceding 12 months: 415,200.