APA aipamena

Jenkins, S., & Page, R. (2011). Time to sleep. Houghton Mifflin.

Chicago Style aipamena

Jenkins, Steve, and Robin Page. Time to Sleep. Boston: Houghton Mifflin, 2011.

MLA aipamena

Jenkins, Steve, and Robin Page. Time to Sleep. Houghton Mifflin, 2011.