Actual date not listed in the book, only copyright dates. On sale date from the publication date reported to the U.S. Copyright Office found in the Catalog of Copyright Entries, Third Series, Volume 30, Part 1, Number 2, Section 2, Books and Pamphlets, Including Serials and Contributions to Periodicals, July-December 1976. Copyright registration number A812516. Copyright given to King Features Syndicate, Inc. as employer for hire.