Copyright 1970 by The Hall Syndicate, Inc. Copyright 1973 by Hank Ketcham.
The ninth printing (circa March 1977) has Fawcett Publications, Inc. as indicia publisher. On the 11th printing (circa September 1977), CBS Publications, The Consumer Publishing Division of CBS, Inc. is listed as the indicia publisher.
No dates listed for printings, the dates are a guess based on Series #, & Imprint Publisher.
Paperbound Books in Print from the Fall of 1982, lists a 1.50 USD cover price edition released October 1981, printing unknown.