World's Finest #224 (1974)
Cover art by Nick Cardy. The Shocking Switch of the Super-Sons, script by Bob Haney, pencils by Dick Dillin, inks by Vince Colletta; While Superman and Batman takes their sons to an "encounter" camp, they are asked to track down a rogue government agent before he releases nerve gas on the people of the nearby town.
Tubby Watts, Efficiency Expert! starring Johnny Quick, script by Don Cameron, art by Ralph Mayo. Three-page illustrated article, Behind the Scenes with the Super Friends by Allan Asherman with art cartoon by Alex Toth. Superman's Secret Master!, script by Bill Finger, art by Jim Mooney.
Never Bet Against An Element Man! starring Metamorpho, script by Bob Haney, pencils by Joe Orlando, inks by Charles Paris (miscredited to Mike Esposito).