Cita APA (7a ed.)

Bettelheim, B. (1967). The empty fortress: Infantile autism and the birth of the self. The Free Press.

Cita Chicago Style (17a ed.)

Bettelheim, Bruno. The Empty Fortress: Infantile Autism and the Birth of the Self. New York : London: The Free Press, 1967.

Cita MLA (9a ed.)

Bettelheim, Bruno. The Empty Fortress: Infantile Autism and the Birth of the Self. The Free Press, 1967.