43 sources
1st Issue Special #2 (May 1975): "The Green Team"
Action Comics
Amazing Adventures (vol. 2) #30 (May 1975): "The Rebels of January and Beyond!"
Captain America (vol. 1) #185 (May 1975): "Scream the Scarlet Skull!"
Creatures on the Loose! #35 (May 1975): "Wolfquest!"
Daredevil (vol. 1) #121 (May 1975): "Foggy Nelson, Agent of S.H.I.E.L.D.!"
The Deadly Hands of Kung Fu
The Defenders (vol. 1) #23 (May 1975): "...The Snakes Shall Inherit the Earth!"
Dracula Lives!
The Frankenstein Monster #16 (May 1975): "Code-Name: Berserker!"
Giant-Size Chillers
Giant-Size Man-Thing
Iron Man (vol. 1) #74 (May 1975): "The Modok Machine!"
The Joker #1 (May 1975): "The Joker's Double Jeopardy!"
Justice League of America (vol. 1) #118 (May 1975): "Takeover of the Earth-Masters!"
The Man-Thing (vol. 1) #17 (May 1975): "A Book Burns in Citrusville!"
Marvel Team-Up (vol. 1) #33 (May 1975): "Anybody Here Know a Guy Named Meteor Man?"
Marvel Two-in-One (vol. 1) #9 (May 1975): "When a God Goes Mad!"
Master of Kung Fu #28 (May 1975): "A Small Spirit Slowly Shaped..."
Richie Rich Millions #71 (May 1975)
Savage Tales
Thor (vol. 1) #235 (May 1975): "Who Lurks Beyond the Labyrinth!"
The Tomb of Dracula (vol. 1) #32 (May 1975): "And Some Call Him...Madness!"
Werewolf by Night (vol. 1) #29 (May 1975): "A Sister of Hell"