Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. [August 2007]
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (May 2007).
letters submitted by Susan Bregman, David Dasch
Statement of October 1, 1972
Owner: National Periodical Publications, Inc., 909 Third Avenue, N.Y., N.Y. 10022, wholly owned by Warner Communications, Inc., 10 Rockefeller Plaza, N.Y., N.Y. 10020, a publicly-held corporation
Average number of copies sold preceding 12 months (total paid circulation): 168,871
Actual number sold for issue nearest filing date (total paid circulation): 224,899