APA (7th ed.) Citation

Donnelly, P. (1997). Diana: A tribute to the people's princess. Courage Books.

Chicago Style (17th ed.) Citation

Donnelly, Peter. Diana: A Tribute to the People's Princess. London: Courage Books, 1997.

MLA (9th ed.) Citation

Donnelly, Peter. Diana: A Tribute to the People's Princess. Courage Books, 1997.