APA (7th ed.) Citation

Beck, I., Andersen, H. C., & Andersen, H. C. (1999). Hans Christian Andersen's "The ugly duckling". Orchard Books.

Chicago Style (17th ed.) Citation

Beck, Ian, Hans Christian Andersen, and Hans Christian Andersen. Hans Christian Andersen's "The Ugly Duckling". London: Orchard Books, 1999.

MLA (9th ed.) Citation

Beck, Ian, et al. Hans Christian Andersen's "The Ugly Duckling". Orchard Books, 1999.