I combined Flash of Two Worlds , Vengeance of the Immortal Villain , Crisis on Earth-One!" and "Crisis on Earth-Two &
Crisis on Earth-Three
I also Put in the Chronological order of Flash (Barry Allen) and FLASH (Jay Garrick)
Flash of Two Worlds!
1)The Flash #123
Secret Origins Vol. 2 #50/2 "Flash of Two Worlds"
Flash 80-Page Giant #2 "Riddle of the Retro Robberies!"
The Flash #124
Flash Special #1/3 (1990): "Captives of the Atom Master"
The Flash #125
Justice League of America #8
The Flash #126-128
Justice League of America #10
Justice League of America #11
2)The Flash #129
Green Lantern Vol. 2 #13 "The Duel of the Super-Heroes"
Justice League of America #12 "The Last Case of the Justice League"
The Flash #130-131
Justice League of America #13 "The Riddle of the Robot Justice League"
Justice League of America #14 "The Menace of the 'Atom' Bomb"
The Flash #132
Justice League of America #15
The Flash #133
Justice League of America #16
The Flash #134
Justice League of America #17
The Flash #135
Justice League of America #18
Green Lantern Vol. 2 #20
The Flash #136
Justice League of America #19
Vengeance of the Immortal Villain
3)The Flash #137
Justice League of America #20 "The Mystery of Spaceman X"
The Flash #138
The Flash #139
Crisis on Earth one & Crisis on Earth Two
Justice League of America #21
Justice League of America #22
The Flash #140
Justice League of America #23
The Flash #141
Justice League of America #24
4)The Flash #142
Justice League of America #25
The Flash #143
Justice League of America #26
Brave and the Bold #53 "The Challenge of the Expanding World"
The Flash #144
Justice League of America #27
Green Lantern Vol. 2 #29/2 "This World is Mine"
Brave and the Bold #54 "The Thousand-and-One Dooms of Mr. Twister"
Flash Vol. 1 #145
Justice League of America #28
Flash 80-Page Giant #1/2 "Dark of the Sun"
Crisis on Earth Three
Justice League of America #29
Justice League of America #30
Flash Vol. 1 #147
Flash Vol. 1 #148
Legends of the DC Universe #12 (January 1999): "Critical Mass Stages 1-5"
JLA: Incarnations #1
Justice League of America #31
Brave and the Bold #56
Aquaman Vol. 1 #18
Brave and the Bold Vol. 3 #10 [Between page 24 and 25 of Aquaman #18]
Flash Vol. 1 #149
Justice League of America #32
Flash Vol. 1 #150
Justice League of America #33
Detective Comics #336/2
Flash of Two Worlds!
5)The Flash #151
Showcase '96 #4/2 "Day & Night, Dark & Bright Part One"
JLA: Incarnations #1
The Flash #152
Justice League of America #34
Justice League of America #35
Brave and the Bold #60
Flash Vol. 1 #153
Justice League of America #36
Flash Vol. 1 #154
Flash Vol. 1 #155
Justice League of America #37
Justice League of America #38