APA (7th ed.) Citation

Burrell, P. (2004). A royal duty. Penguin Books.

Chicago Style (17th ed.) Citation

Burrell, Paul. A Royal Duty. London: Penguin Books, 2004.

MLA (9th ed.) Citation

Burrell, Paul. A Royal Duty. Penguin Books, 2004.

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