APA (7th ed.) Citation

SMITH. (1999). Diana in search of herself: Portrait of a troubled princess. A Signet Book.

Chicago Style (17th ed.) Citation

SMITH. Diana in Search of Herself: Portrait of a Troubled Princess. New York: A Signet Book, 1999.

MLA (9th ed.) Citation

SMITH. Diana in Search of Herself: Portrait of a Troubled Princess. A Signet Book, 1999.

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