APA (7th ed.) Citation

Christian Andersen,Hans. Thumbelina. Ladybird Book.

Chicago Style (17th ed.) Citation

Christian Andersen,Hans. Thumbelina. United States America: Ladybird Book.

MLA (9th ed.) Citation

Christian Andersen,Hans. Thumbelina. Ladybird Book.

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