APA

(1966). a story of the ugly duckling. tokyo: froebel-kan co, ltd.

Chicago

1966. a story of the ugly duckling. tokyo: froebel-kan co, ltd.

Harvard

(1966). a story of the ugly duckling. tokyo: froebel-kan co, ltd.

MLA

a story of the ugly duckling. tokyo: froebel-kan co, ltd. 1966.