APA (7th ed.) Citation

Tolkien, J. R. R., & Tolkien, B. (2012). Letters from Father Christmas. HarperCollinsPublishers.

Chicago Style (17th ed.) Citation

Tolkien, J. R. R., and Baillie Tolkien. Letters from Father Christmas. London: HarperCollinsPublishers, 2012.

MLA (8th ed.) Citation

Tolkien, J. R. R., and Baillie Tolkien. Letters from Father Christmas. HarperCollinsPublishers, 2012.

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