On sale date from the publication date reported to the U.S. Copyright Office found in the Catalog of Copyright Entries, Third Series, Volume 23, Part 2, Periodicals, January-December 1969. Class B periodical. Copyright registration number B521713.
Letters from: Mrs. Clifford Lee Barnett (Columbus, Ohio); Rita Banta; Bud Cavadini (Cashton, Wis.); William Jeffries (Teaneck, N.J.); Steven R. Lavine (Skokie, Ill.); Pat Stillwaggon (Montgomery, Ala.); John Duerner (Modesto, Calif.).