Actual publication date not listed in book. Printing not listed, but this is the first printing. First printing date came from the Jove Books edition of same book (Jove, 1990 series) #10163.
On sale date from the publication date reported to the U.S. Copyright Office found in the Catalog of Copyright Entries, Third Series, Volume 29, Part 1, Number 1, Section 2, Books and Pamphlets, Including Serials and Contributions to Periodicals, January-June 1975. Copyright registration number A645647.