APA (7th ed.) Zitazioa

Schulz, R., Blunt, J., Mcdonald, M., & Malik, A. (2017). OK. Sony/ATV Music Publishing.

Chicago Style (17th ed.) Zitazioa

Schulz, Robin, James Blunt, Maureen Mcdonald, eta Ammar Malik. OK. New York, United States: Sony/ATV Music Publishing, 2017.

MLA (9th ed.) Zitazioa

Schulz, Robin, et al. OK. Sony/ATV Music Publishing, 2017.