Dick Giordano in an email to the indexer has confirmed that he inked this cover, and suspects that he pencilled it based on a layout from Carmine Infantino. However, it also seems to have a Curt Swan look; particularly the Cheetah.
The Comic Reader #191 (May-June 1981) lists the artists as "Jose Delbo/Vince Colletta".
Writer credit from Bob Rozakis via Tony Isabella's blog. Letterer credit from posters to Tony Isabella's blog (including Kurt Busiek).