APA (7e ed.) Bronvermelding

Understanding Sleep (Brain Basics). National Institute of Neurological Disorders & Stroke.

Chicago (17e ed.) Bronvermelding

Understanding Sleep (Brain Basics). National Institute of Neurological Disorders & Stroke.

MLA (9e ed.) Bronvermelding

Understanding Sleep (Brain Basics). National Institute of Neurological Disorders & Stroke.

Let op: Deze citaties zijn niet altijd 100% accuraat.