Marvel Italia
The X-Men #27 [U.S. Cover Price]
published December 1966
was Re-Enter: The Mimic! [Story on Interior Page(s)]
The X-Men #28 [U.S. Cover Price]
published January 1967
was The Wail of the Banshee! [Story on Interior Page(s)]
The X-Men #29 [U.S. Cover Price]
published February 1967
was When Titans Clash! [Story on Interior Page(s)]
Amazing Adventures #17 [U.S. Cover Price]
published March 1973
was Birth of the Beast! [Story on Interior Page(s)]
X-Men: The Early Years #15 published July 1995
The X-Men #27 [U.S. Cover Price] published December 1966
The X-Men #28 [U.S. Cover Price] published January 1967
The X-Men #29 [U.S. Cover Price] published February 1967
The X-Men #30 [U.S. Cover Price] published March 1967
Amazing Adventures #17 [U.S. Cover Price] published March 1973
The X-Men #49 published October 1968
The X-Men #50 published November 1968
The X-Men #51 published December 1968
The X-Men #52 published January 1969
The X-Men #53 published February 1969