Also designated on cover as 80 Page Giant (DC, 1964 series) #G28 and as G-28 on indicia page. Cover-dated November.
On-sale date from ad in Challengers of the Unknown #52 and copyright registration.
Illustrated with vignettes from the covers of World's Finest Comics (DC, 1941 series) #96, 102, 105, and 110.
Klein/Reed list Paris inks
Letters from Jackie Ringer, Frank Kowodsk, Brian Carlson, John Demby, Richard Alf, James Gayne, Sharon Wagganer, Mitty Smith, Richard Sheinaus, Bruce Miller, Terrance Dean, Robert F. Grunwald.
Klein/Reed say Burnley inks