Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Story in two parts: unnumbered part one (7.67 pp.) & Part Two (5.67); Part Two without exclamation point in title.
Letters from Irene Vartanoff, Robert Renneberg, Mike Friedrich.
Duane Jepson (idea).
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.