Action Comics 1938 #546 Direct ed. - back issue - $5.00

Superman gathers the Justice League and the Teen Titans to help battle Brainiac and his alien army.

• Showdown! - Art credits and job number confirmed from Julius Schwartz's editorial records, provided by DC Comics. Colors credit confirmed by Anthony Tollin.
• Showdown! - Page count and job number confirmed from Julius Schwartz's editorial records, provided by DC Comics. Story continues from Action Comics #545 (July 1983).
• Batman and the Outsiders - Letters credit from http://kleinletters.com/.
• - Page count and job number confirmed from Julius Schwartz's editorial records, provided by DC Comics.