"Earth--The Monster-Maker!" #91
| Series | Justice League Of America |
| Number | Vol. 1 #91 |
| Publisher | DC Comics, National Periodical Publications, Inc. |
| Date | 1971-08 |
| Type | Comic Book, Softcover |
| Language | English |
| Cover Artist | Neal Adams |
| Editor | Julius Schwartz |
| Inker | Joe Giella, Sid Greene |
| Penciler | Dick Dillin, Carmine Infantino |
| Writer | Mike Friedrich, Robert Kanigher, Gardner Fox |
| Genre | Superhero |
| Published in | Sparta, Illinois |
| Pages | 48 |
| Characters | Superman (Kal-El) (Earth 1), Superman (Kal-L) (Earth 2), Flash (Barry Allen) (New Earth), Flash (Jay Garrick) (New Earth), Green Lantern (Hal Jordan) (New Earth), Green Lantern (Alan Scott) (New Earth), Hawkman (Katar Hol) (Earth 1), Hawkman (Carter Hall) (New Earth), Atom (Al Pratt) (New Earth), Atom (Ray Palmer) (New Earth), Robin (Dick Grayson) (Earth 1), Robin (Dick Grayson) (Earth 2), Green Arrow (Oliver Queen) (New Earth), Hourman (Rex Tyler) (New Earth), Knights of the Galaxy |
| Story Location | Earth-One, Earth-Two |
| Collects | "The Day the World Melted", "The Hour Hourman Died!" |
| Links | Issue link · Reprint link · Reprint link |
| Notes | JLA-JSA Team Up. 1st Story: "Earth--The Monster-Maker!" Reprinted Issues: 2nd story: Mystery in Space Vol 1 #6, February, 1952; The Day the World Melted 3d story: Spectre Vol 1 #7, December, 1968; The Hour Hourman Died! |
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