APA (7th ed.) Citation

Engdahl, S. (2011). Sleep disorders. Greenhaven Press.

Chicago Style (17th ed.) Citation

Engdahl, Sylvia. Sleep Disorders. Detroit: Greenhaven Press, 2011.

MLA (9th ed.) Citation

Engdahl, Sylvia. Sleep Disorders. Greenhaven Press, 2011.

Warning: These citations may not always be 100% accurate.