Comic Title: Action Comics #524
Publisher: DC (DC Comics Inc.)
Address: 75 Rockefeller Plaza, New York, NY
Cover Date: October 1981
On Sale Date: July 23, 1981 Newsstand Date July 23, 1981
Source: Comic Reader, #192

Newsstand Date July 23, 1981
Source: DC Coming Attractions, #56

Newsstand Date July 23, 1981
Source: Amazing Heroes, #3

Copyright Date June 30, 1981
Source: Library of Congress, Copyright Office 1981
DC publication dates beyond April 1981 listed by the LoC
represent shipping dates NOT newsstand sale dates

Shipping Date June 30, 1981
Source: DC Coming Attractions, #56

Frequency: Monthly
Cover Price: $0.60
Page Count: 32
Editor: Julius Schwartz

Title: "Catastrophe by Calculation"
Pages: 8

Feature(s):
Atom (Ray Palmer of Earth-1)
Air Wave (of Earth-1)

Writer: Bob Rozakis
Penciller: Alex Saviuk
Inker: Vince Colletta
Letterer: Todd Klein
Colorist: Thomas J. Ziuko

Feature Character(s)

• Atom (last appearance in Action Comics #523; next appearance in Justice League of America #195)
• Air Wave (last appearance in Action Comics #514; next appearance in Action Comics #525)

Supporting Character(s)

• Jean Loring (last appearance in Action Comics #523; next appearance in Action Comics #530)
• Alpheus V. Hyatt (last appearance in Action Comics #523; next appearance in DC Comics Presents #51)

Villain(s)

• Calculator (last appearance in Action Comics #523; no further appearances)