| Issue | #18 |
| Published | March 1963 |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Julius Schwartz |
| Characters | Green Lantern [Hal Jordan]; The Flash [Barry Allen]; Martian Manhunter [John Jones; J'onn J'onzz]; Green Arrow [Oliver Queen]; Aquaman; Wonder Woman; The Atom [Ray Palmer] |
| Genre | superhero |
| Pencils | Mike Sekowsky |
| Inks | Murphy Anderson |
| Letters | Ira Schnapp |
| Notes | Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Lettering credit from reprint in JLA Archives. |
| Reprinted | in Justice League of America Archives, The (DC, 1992 series) #3; in Showcase Presents: Justice League of America (DC, 2005 series) #2 |
| Characters | Superman; Batman; Green Lantern [Hal Jordan]; The Flash [Barry Allen]; Wonder Woman; Aquaman; Green Arrow [Oliver Queen]; Martian Manhunter [John Jones; J'onn J'onzz]; The Atom [Ray Palmer]; Snapper Carr; Midge (Snapper's girlfriend); The Protectors of Starzl (androids named Terrane, Ocana, and Etheran) |
| Synopsis | The JLA is brought to a sub-atomic world where they need to defeat the protectors of that world in order to save its people. |
| Genre | superhero |
| Script | Gardner Fox |
| Pencils | Mike Sekowsky |
| Inks | Bernard Sachs |
| Letters | Gaspar Saladino |
| Notes | Lettering credit from reprint in JLA Archives. |
| Reprinted | in Justice League of America (1960 series) #93; in Justice League of America Archives, The (DC, 1992 series) #3; in Showcase Presents: Justice League of America (DC, 2005 series) #2 |
| Synopsis | Johnny discovers the hazards of leaving things lying around the home. |
| Notes | Synopsis provided by Donald Dale Milne. |
| Reprinted | in Detective Comics #313; Batman #154; Superman's Pal Jimmy Olsen #167; House of Secrets #59; House of Mystery #132 |
| Notes | Includes a letter from Roy Thomas |