Primary Sources Indexed
Sources published in Apr 1968

18 sources

2001: A Space Odyssey (1968)
The Amazing Spider-Man (vol. 1) #59 (Apr. 1968): "The Brand of the Brainwasher!"
The Avengers (vol. 1) #51 (Apr. 1968): "In the Clutches of the Collector!"
Captain America (vol. 1) #100 (Apr. 1968): "This Monster Unmasked!"
Daredevil (vol. 1) #39 (Apr. 1968): "The Exterminator and the Super-Powered Unholy Three"
Dim Dam Dom (14 Apr. 1968)
Green Lantern (vol. 2) #60 (Apr. 1968): "Spotlight on the Lamplighter!"
Iron Man and Sub-Mariner

Iron Man and Sub-Mariner #1 (Apr. 1968): "The Torrent Without -- The Tumult Within!"
Iron Man and Sub-Mariner #1 (Apr. 1968): "Call Him Destiny... or Call Him Death!"

Planet of the Apes (1968)
Sgt. Fury and His Howling Commandos (vol. 1) #53 (Apr. 1968): "To the Bastions of Bavaria!"
Strange Tales

Strange Tales (vol. 1) #167 (Apr. 1968): "Armageddon!"
Strange Tales (vol. 1) #167 (Apr. 1968): "This Dream-- This Doom!"

Thor

Thor (vol. 1) #151 (Apr. 1968): "--To Rise Again!"
Thor (vol. 1) #151 (Apr. 1968): "Inhuman at Large!"

Where Angels Go Trouble Follows! (1968)
The X-Men

The X-Men (vol. 1) #43 (Apr. 1968): "The Torch Is Passed...!"
The X-Men (vol. 1) #43 (Apr. 1968): "Call Him...Cyclops!"

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