Klein credits from his website: http://kleinletters.com/1981OtherStuff.html.
Letters from Dusty Leary; Charles D. Brown; Bob Holum; Mike Paredes; Paul Zuckerman.
Statement of October 1, 1981
Average number of copies sold during preceding 12 months (total paid circulation): 83,796
Actual number sold for issue nearest filing date (total paid circulation): 81,725
Owner: DC Comics, Inc., wholly owned by Warner Communications, Inc., a publicly-held company, both at 75 Rockefeller Plaza, N.Y., N.Y. 10019