On sale date from promo ad in Wonder Woman #136.
Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Lettering credit from reprint in JLA Archives.
The Tornado Tyrant features in the origin of the Red Tornado. It last appeared in Mystery in Space #61.
Story is told in 4 chapters: unnumbered part 1 (4.67 pp.), Part 2 (7.67 pp.), Part 3 (8.67 pp.), Part 4 (2.67 pp.)
Lettering credit from reprint in JLA Archives.
Letters from James Morrison, John DeVries, Jim Dismukes, Joe B. Allen, C. E. Casey, Robert Butts, Dorothy Keyser.