Julius Schwartz's editorial records, provided by DC Comics, lists Ross Andru and Mike Esposito as the cover artists. However, art spotters on the GCD agree that Gil Kane did the pencils and Mike Esposito did the inks (added by Gregory Fischer, May 2009).
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (May 2007). Schwartz kept records for Robert Kanigher who edited this issue.