APA

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

Chicago

Bettelheim Bruno, . 1967. The empty fortress: infantile autism and the birth of the self. New York: Free Press.

Harvard

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

MLA

Bettelheim Bruno, . The empty fortress: infantile autism and the birth of the self. New York: Free Press. 1967.