Cita APA (7th ed.)

Foulkes, D. (1966). The psychology of sleep. Charles scribner's sons.

Cita Chicago (17th ed.)

Foulkes, David. The Psychology of Sleep. New York: Charles scribner's sons, 1966.

Cita MLA (9th ed.)

Foulkes, David. The Psychology of Sleep. Charles scribner's sons, 1966.