30 sources
Adventure Comics (vol. 1) #458 (June 1978): "He Who Survives--!"Captain America (vol. 1) #222 (June 1978): "Monumental Menace!"The Defenders (vol. 1) #60 (June 1978): "Xenogenesis Day of the Demons, Part 3: The Revenge of Vera Gemini!"Devil Dinosaur #3 (June 1978): "Giant"Fantastic Four (vol. 1) #195 (June 1978): "Beware the Ravaging Retrievers!"Ghost Rider (vol. 2) #30 (June 1978): "The Mage and the Monster!"Green Lantern (vol. 2) #105 (June 1978): "Thunder Doom!"The Human Fly #10 (June 1978): "...Dark as a Dungeon Down in the Mine!"The Invaders (vol. 1) #29 (June 1978): "Attack of the Teutonic Knight!"Justice League of America (vol. 1) #155 (June 1978): "Under the Moons of Earth!"Machine Man (vol. 1) #3 (June 1978): "Ten-For, the Mean Machine"Marvel Premiere #42 (June 1978): "Nightmare's Evolution"Marvel Team-Up (vol. 1) #70 (June 1978): "Whom Gods Destroy!"Marvel Two-in-One (vol. 1) #40 (June 1978): "Conjure Night!"Ms. Marvel (vol. 1) #18 (June 1978): "The St. Valentine's Day/Avengers Massacre!"Peter Parker, The Spectacular Spider-Man #19 (June 1978): "Again, the Enforcers!"
The Rampaging HulkRex Komiks #1 (June 1978): "Dugong Aztec"Spider-Woman (vol. 1) #3 (June 1978): "The Peril of -- Brother Grimm"Sukia #1 (1 June 1978): "Vampira a New York"Superboy and the Legion of Super-HeroesThor (vol. 1) #272 (June 1978): "The Day the Thunder Failed!"What If? (vol. 1) #9 (June 1978): "What If... the Avengers Had Been Formed During the 1950's?"X-Men (vol. 1) #111 (June 1978): "Mindgames!"