APA način citiranja (7. izdanje)

Walker, M. P. (2018). Why we sleep: The new science of sleep and dreams. Penguin Books.

Čikaški stil citiranja (17. izdanje)

Walker, Matthew P. Why We Sleep: The New Science of Sleep and Dreams. UK: Penguin Books, 2018.

MLA način citiranja (9. izdanje)

Walker, Matthew P. Why We Sleep: The New Science of Sleep and Dreams. Penguin Books, 2018.