Summers, K. D. (2012). Katy Perry: A biography. Greenwood.
Chicago Style (17th ed.) CitationSummers, Kimberly Dillon. Katy Perry: A Biography. Santa Barbara, Calif. [u.a.]: Greenwood, 2012.
MLA (9th ed.) CitationSummers, Kimberly Dillon. Katy Perry: A Biography. Greenwood, 2012.
Warning: These citations may not always be 100% accurate.