Story: "What's Black and White and Black and White and Bl" (56 Pages)

Credits:

Keith Giffen (plot, layouts)
J.M. DeMatteis (script)
Mike McKone (pencils)
Bob Smith (inks)
Bob Lappan (letters)
Gene D'Angelo (colors)
Andy Helfer (edits)

Feature Characters:

Martian Manhunter (last in Justice League Europe #19; next in Justice League Europe Annual #1)
Guy Gardner (last in Justice League America #42; next in Adventures of Superman #473)
Fire (last in Justice League America #42; next in Justice League Quarterly #1)
Captain Atom (last in Justice League Europe #19; next in Captain Atom #45)
Power Girl
Elongated Man
Metamorpho (all three last in Justice League Europe #19; all three next in Justice League Europe Annual #1)
G'nort (last in Justice League America #40; becomes leader of Justice League Antarctica; next in Justice League Quarterly #2)
Scarlet Skier (last in Justice League America #36; next in Justice League Quarterly #2)
Major Disaster
Big Sir (both last in Justice League America #35)
Clock King
Multi-Man
Cluemaster
Mighty Bruce (all four last in Justice League Europe #6; latter eight form the Justice League Antarctica; latter six next in Justice League Quarterly #4)

Supporting Characters:

Maxwell Lord (last in Justice League Europe #19; next in Justice League Quarterly #1)
Oberon (in between Mister Miracle Vol. 2 #19 and #20)
Sue Dibny
Catherine Cobert (both last in Justice League Europe #19; both next in Justice League Europe Annual #1)

Villain:

Killer penguins (first appearance; genetically altered penguins)

Other Character:

Mr. Matisse (first appearance)