Possible Severin inks per Nick Caputo, December 2017; the original indexer credited the pencils to Jack Kirby and the inks to Severin and Trimpe.
Possible Severin colors per Nick Caputo, who notes that Marie has mentioned in interviews that she usually colored most of the work she drew.
At the end of the Hulk segment in Tales to Astonish #96, the High Evolutionary sets everything back to normal, as if it never happened, which results in the Hulk returning to Earth at the start of this story.
Letters from Brian Merbaum, Roderick McNair, and John Kunz. Includes image from a previous issue.