11 sources
Captain America (vol. 1) #140 (Aug. 1971): "In the Grip of the Gargoyle!"Daredevil (vol. 1) #79 (Aug. 1971): ""Murder!" Cries the Man-Bull!"Fantastic Four (vol. 1) #113 (Aug. 1971): "The Power of the Over-Mind"The Incredible Hulk (vol. 2) #142 (Aug. 1971): "They Shoot Hulks, Don't They?"Iron Man (vol. 1) #40 (Aug. 1971): "Nightwalk!"Justice League of America (vol. 1) #91 (Aug. 1971): "Earth -- The Monster-Maker!"Little Lotta in Foodland #27 (Aug. 1971)Sgt. Fury and His Howling Commandos (vol. 1) #90 (Aug. 1971): "...And One Must Die!"Sub-Mariner (vol. 1) #40 (Aug. 1971): "Under the Name of Ritual"Thor (vol. 1) #191 (Aug. 1971): "A Time of Evil!"X-Men (vol. 1) #71 (Aug. 1971): "I, Lucifer..."