APA (7th ed.) Citation

Stone,Petula. (1993). The ugly duckling. Ladybird books Ltd.

Chicago Style (17th ed.) Citation

Stone,Petula. The Ugly Duckling. London: Ladybird books Ltd, 1993.

MLA (9th ed.) Citation

Stone,Petula. The Ugly Duckling. Ladybird books Ltd, 1993.

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