Notes:
Compliments of Radio Shack. This comic also appeared as an insert in several comics in July 1980, including Action Comics (1938 series) #509, New Adventures of Superboy (1980 series) #7, Legion of Super-Heroes (1980 series) #265, and House of Mystery (1951 series) #282.
There are three known printings of this comic. The order of the printings is not explicitly stated, but assumptions are made based on the advertisements. The differences between the three printings are noted in the Indexer Notes below. The cover and indicia are identical in all three printings.
On sale date of March 26, 1980 from the 1980 Library of Congress copyright records (cocatalog.loc.gov). Registered on April 8, 1980 (registration number TX449786). A second registration was made in the 1984 copyright records indicating a publication date of July 1, 1980. This was registered on October 29, 1984 (registration number TX1444182). The reason for the two different publication dates is unclear.