from Donald Duck Beach Party (Dell, 1954 series) #1 (July 1954)wraparound cover
from Donald Duck Beach Party (Dell, 1954 series) #2 (July 1955)This story is also reprinted in Walt Disney Comics Digest (Gold Key, 1968 series) #54 (August 1975) [new layout].
from Walt Disney's Comics and Stories (Dell, 1940 series) #v4#9 (45) (June 1944)date:44-01-19, this story is also reprinted in Carl Barks Library (Another Rainbow, 1983 series) #7 (March 1988), Carl Barks Library of Walt Disney's Comics and Stories in Color, The (Gladstone, 1992 series) #3 (March 1992) and in Walt Disney's Donald Duck and Friends (Gemstone, 2003 series) #330 (August 2005).