The type is too tiny to read, but it says, "From an idea by Roger Stern, with apologies to Don Martin"(Added by JB: This cover also netted Archie Goodwin, then EiC at Marvel, a nasty letter from the EiC of MAD magazine, saying he thought it was most unprofessional of Marvel to be publishing a book that ripped off another artist's style! As Archie said when he told me this "I thought they were supposed to be the ones with the sense of humor!")