Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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