APA (7th ed.) Citation

Perry, K. Katy Perry [: Witness. s.n..

Chicago Style (17th ed.) Citation

Perry, Katy. Katy Perry [: Witness. [S.l.]: s.n..

MLA (9th ed.) Citation

Perry, Katy. Katy Perry [: Witness. s.n..

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