Marvel
Marvel Famous Firsts: 75th Anniversary Masterworks Slipcase Set #10
published September 2014
X-Men: Children of the Atom #[1]
published January 2019
Biblioteca Marvel: La Patrulla-X #1
published April 2023
The Official Marvel Index to the X-Men #1 published May 1987
Marvel Masterworks: The X-Men #[1] published December 1998
Marvel Masterworks: The X-Men #1 published April 2002
Los Hombres X #3 published March 1966
Marvel Super-Heroes #22 published September 1969
Marvel's Greatest Superhero Battles #[nn] published January 1978
Amazing Adventures #5 [Newsstand] published April 1980
Marvel Masterworks #3 published November 1987
Uncanny X-Men Masterworks #1 published February 1993
Essential Uncanny X-Men #1 [1st Printing] published September 1999
The X-Men Omnibus #1 [Alex Ross Cover] published April 2009
Marvel Masterworks: The X-Men #[1] published December 1998
Marvel Masterworks: The X-Men #1 published April 2002
X-Men Epic Collection #1 [unnamed variant] published January 2014
Los Hombres X #3 published March 1966
Marvel Super-Heroes #22 published September 1969
Marvel's Greatest Superhero Battles #[nn] published January 1978
De Fantastiske Fire [Fantastiske Fire superseriepocket] #1 published January 1979
Amazing Adventures #5 [Newsstand] published April 1980
Amazing Adventures #6 [Direct] published May 1980
The Marvel Saga the Official History of the Marvel Universe #12 [Direct Edition] published November 1986
Marvel Masterworks #3 published November 1987
Uncanny X-Men Masterworks #1 published February 1993
X-Men: The Early Years #3 [Direct] published July 1994
Marvel Special #3 published April 1995
Essential Uncanny X-Men #1 [1st Printing] published September 1999
The X-Men Omnibus #1 [Alex Ross Cover] published April 2009