Cita APA (7th ed.)

McKenna, P., Osborne, M., & Willbourn, H. (2009). I can make you sleep: Overcome insomnia forever and get the best rest of your life. Sterling.

Cita Chicago (17th ed.)

McKenna, Paul, Mike Osborne, i Hugh Willbourn. I Can Make You Sleep: Overcome Insomnia Forever and Get the Best Rest of Your Life. New York: Sterling, 2009.

Cita MLA (8th ed.)

McKenna, Paul, et al. I Can Make You Sleep: Overcome Insomnia Forever and Get the Best Rest of Your Life. Sterling, 2009.