Inside front cover.
Based on Martin O’Hearns blog:
http://martinohearn.blogspot.com/2012/03/superman-riss-or-citron.html, and comparing this story to Citron’s known work on Classics Illustrated 10 [HRN 140] and the DC Mr. District Attorney series, the pencils credit has been changed to Pete Riss. Inker credit by Bob Hughes; previously credited to Sam Citron.
Arrowcar is green.
Letters credit from Todd Klein via his Klein Letters blog (19 September 2016, http://kleinletters.com/Blog/ira-schnapp-in-worlds-finest-comics-part-2/).
Credits by Craig Delich.
World's Best Comics Inc. Owners: H Donenfeld, J.S. Liebowitz, G.F. Frank, A.I. Menin
Credits by Craig Delich and verified by Sprang.