. . . . . . "Dumbella" . . . . . . . "Donald Duck Sunday strip on October 17, 1937 (name only)" . "Della Duck" . . . . "DuckTales (2017)" . . "Della
Duck" . . . . . . . . . . "In animation:" . . . . . . . "Donald's Nephews (1938) (name only)" . . "Della
Duck" . . . "In print:" . . . . "sister" . "Duck Duck" . . . . . . . "Della Duck" . . . . "Della" . . . . . . . "Dumbella Duck" .