Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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