On-sale date from Comic Reader #75 and copyright registration.
Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Pencils previously credited to Gil Kane.
A discussion on GCD Main felt that Carmine Infantino had probably sketched the layout, as he laid out and/or designed most of the DC covers between 1967-1975. Six respondents also felt that Gil Kane at least "had a hand in it" although two thought that there was no Kane input. Mike W Barr, in his Silver Age Sci-Fi Companion, credits Gil Kane as penciller.
A new Adam Strange story.