APA (7th ed.) Citation

Buttertworth, N. (2001). Percy's Friend The Hedgehog. Collins.

Chicago Style (17th ed.) Citation

Buttertworth, Nick. Percy's Friend The Hedgehog. London: Collins, 2001.

MLA (9th ed.) Citation

Buttertworth, Nick. Percy's Friend The Hedgehog. Collins, 2001.

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