The price has been removed from the original, and the number got moved next to the month (should be underneath). DC Silver Age Classics Action Comics #252 also credits this cover to Curt Swan and Stan Kaye, other sources credit Curt Swan and Al Plastino.
An overview of the context of this issue and the character, and credits. Appears on inside of front and back covers.
Credits in this issue say "Unknown" for writer, but the corrections page in the Millennium Edition: Superboy #1 (2001 series), which was the last Millennium Edition, credits Robert Bernstein for this story.