APA (7th ed.) Citation

Delia Smith. (2009). Delia's Happy Christmas. Ebury Press.

Chicago Style (17th ed.) Citation

Delia Smith. Delia's Happy Christmas. UK: Ebury Press, 2009.

MLA (9th ed.) Citation

Delia Smith. Delia's Happy Christmas. Ebury Press, 2009.

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