On sale date from the publication date reported to the U.S. Copyright Office found in the Catalog of Copyright Entries, Third Series, Volume 28, Part 1, Number 2, Section 2, Books and Pamphlets, Including Serials and Contributions to Periodicals, July-December 1974. Copyright registration number A591405. Copyright was given to King Features Syndicate.
ISBN number listed is the Standard Book Number (SBN), the predecessor to the ISBN.