APA (7th ed.) Citation

Ullstein, S. The Pied Piper of Hamelin. Ladybird Books.

Chicago Style (17th ed.) Citation

Ullstein, Sue. The Pied Piper of Hamelin. Loughborough: Ladybird Books.

MLA (9th ed.) Citation

Ullstein, Sue. The Pied Piper of Hamelin. Ladybird Books.

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