APA (7th ed.) Citation

Carole Matthews. (2013). Calling Mrs Christmas. Sphere Books.

Chicago Style (17th ed.) Citation

Carole Matthews. Calling Mrs Christmas. Great Britain: Sphere Books, 2013.

MLA (9th ed.) Citation

Carole Matthews. Calling Mrs Christmas. Sphere Books, 2013.

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