APA (7th ed.) Citation

Jonathan Langley. (1996). The ugly duckling. PictureLions.

Chicago Style (17th ed.) Citation

Jonathan Langley. The Ugly Duckling. London: PictureLions, 1996.

MLA (9th ed.) Citation

Jonathan Langley. The Ugly Duckling. PictureLions, 1996.

Warning: These citations may not always be 100% accurate.