ACTION COMICS (1938) #342

“THE SUPER-HUMAN BOMB!” Interplanetary criminal Grax travels to Earth, where he uses a force field to trap Superman on Earth while he threatens to destroy the planet with a bomb! Contents  » The Super-Human Bomb!  » (Superman) written by Jim Shooter, penciled and inked by Wayne Boring. Reprinted in DC Special #18 and the The Best of DC #42 .  » The Day Supergirl Became an Amazon ! » (Supergirl) written by Otto Binder, penciled and inked by Jim Mooney.