APA (7th ed.) Citation

Andersen, H. C., & Weir, H. (1855). The ugly duckling. G. Routledge & Co..

Chicago Style (17th ed.) Citation

Andersen, H. C., and Harrison Weir. The Ugly Duckling. London ; New York: G. Routledge & Co., 1855.

MLA (9th ed.) Citation

Andersen, H. C., and Harrison Weir. The Ugly Duckling. G. Routledge & Co., 1855.