Standard Book Number: 232-01214-050.
Copyright 1957 by The Hall Syndicate, Inc. Copyright 1957-1958, 1963 by Hank Ketcham.
Expanded edition containing 62 additional cartoons that did not appear in the original Henry Holt edition.
No actual publication date listed. Printing from a series of 5 dots on copyright page signifying printing info. Date is an educated guess based on series number and Dennis the Menace back issue ad.
Fawcett listed as a member of the American Book Publishers Council, Inc.