This issue is a variant of Detective Comics (DC, 1937 series) #522 [Direct]. There exist further variants.
On-sale date from copyright registration.
Colors credit confirmed by Anthony Tollin.
Letters of comment from Jim DeMarco, Neil Ahlquist, Jeff A. Ensley, Joshua Adam Bilmes and Kent A Phenis. Most of the last column is "DC Coming Comics" for November 1982.