Credits based upon Alberto Becattini's "Disney Index - Dell Comic Books" Vols. 1 and 2 (Italy, 1992 and 1994). On-sale date from 1960 Books and Pamphlets, Copyright Office, Library of Congress.
Adapted from the Disney cartoon of the same title. Chapter 4, Clever Strategy redrawn version of Walt Disney's Comics and Stories (Dell, 1940 series) #141 by Carl Barks.